CVE-2021-26084 is an OGNL injection vulnerability allowing an unauthenticated attacker to execute arbitrary code on the targeted instance. It may be worth noting that statements from the vendor indicate this vulnerability is being actively exploited in the wild and that affected servers should be patched imediately.Hi - I'd like to use a hyperlink in Excel to automatically create a page in Confluence using a template. Currently I have a button on a Confluence page that uses a template to create a new page. Clicking this button goes to a URL that guides the creation of a page in a certain space using the templa...Feb 22, 2023 · Looking over some of our honeypot logs today, I noticed one IP address, 60.223.74.99, scanning for several older Confluence vulnerabilities. Confluence is the collaboration component of Atlassian's suite of developer tools [1]. Sep 15, 2021 · A vulnerabilidade é uma injeção de OGNL (Object-Graph Navigation Language) em um dos modelos "Velocity" (mecanismo de modelagem) do Confluence que pode ser acionado acessando "/pages/createpage-entervariables.action" e possivelmente outros URLs também. Algumas explorações de prova de conceito (PoC) e nossos dados sugerem URLs adicionais ... 1. Create a global template (or use existing one) from General Configuration > Global Templates and Blueprints > Add Global Template. 2. After Template is created, edit it, if you have an existing template you want to use, edit that one instead. URL will contain entityId of the template, like such:日常渗透发现的某企业存在Confluence未授权rce的漏洞，隔了一个周末后发现被waf拦截了，所以多了个和waf对抗的故事..... 1、HTTP隧道传输/ HTTP pipeline【失败】 通过使用 Connection: keep-alive 达到一次传输多个http包的效果； POSTFeb 8, 2022 · createpage-entervariables.action attempted by userName: anonymous - sign of a breach? Lucinda Stroud Feb 07, 2022 Hi all, our Confluence site went down earlier today but came back up following an application restart. In looking through the logs, I found multiple entries that raised my antennae a bit: Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.CVE-2021-26084 (PoC) | Confluence Server Webwork OGNL injection. An OGNL injection vulnerability exists that would allow an authenticated user, and in some instances unauthenticated user, to execute arbitrary code on a Confluence Server or Data Center instance. My fight to locate the entrypoints and injections XD. Fight (1){"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"imgs","path":"imgs","contentType":"directory"},{"name":"PoC.py","path":"PoC.py","contentType ...Jan 9, 2021 · Exploit for Confluence Server 7.12.4 - 'OGNL injection' Remote Code Execution (RCE) (Unauthenticated) 2021-26084 CVE-2021-26084 /pages/createpage-entervariables.action The following graph shows traffic matching Cloudflare’s WAF security feature from August 21 to September 5, 2021. Specifically: In blue: HTTP requests blocked by Cloudflare’s WAF matching the two chosen paths.If options for Sign-up or Create new user are enabled, then an unauthenticated user can send a malicious payload to an endpoint and create new entries for the Confluence Server such as /pages/createpage-entervariables.action and trigger the vulnerability which can lead to remote code execution.在填写数据库信息的页面，PostgreSQL数据库地址为db，数据库名称confluence，用户名密码均为postgres。 漏洞复现： POST /pages/createpage-entervariables.action HTTP/1.1 Host: 192.168Oct 31, 2019 · ### 漏洞复现： ```sh POST /pages/createpage-entervariables.action HTTP/1.1 Host: 192.168.33.170:8090 Accept-Encoding: gzip, deflate Accept: */* Accept-Language: en User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36 Connection: close Content-Type: application/x-www ... Feb 8, 2022 · createpage-entervariables.action attempted by userName: anonymous - sign of a breach? Lucinda Stroud Feb 07, 2022 Hi all, our Confluence site went down earlier today but came back up following an application restart. In looking through the logs, I found multiple entries that raised my antennae a bit: Add the basic Create From Template macro to a page pointing to the template to be used and save the page. In View Mode, right click on the Create from Template button and select Copy Link Address. Navigate to the page that will be the parent page of the pages created using the link being created. Identify your Space Key.Jun 13, 2023 · location ~ .*\/pages\/createpage-entervariables.action.*$ { return 403; } 重启后，继续观察，发现再有相关路径的访问全部被拦截 经过查找资料发现，这是confluence的一个漏洞，名称叫做注入漏洞，编号：CVE-2021-26084 Add the basic Create From Template macro to a page pointing to the template to be used and save the page. In View Mode, right click on the Create from Template button and select Copy Link Address. Navigate to the page that will be the parent page of the pages created using the link being created. Identify your Space Key.1. Create a global template (or use existing one) from General Configuration > Global Templates and Blueprints > Add Global Template. 2. After Template is created, edit it, if you have an existing template you want to use, edit that one instead. URL will contain entityId of the template, like such:Jul 4, 2011 · A detailed write-up on the vulnerability can be found on github a reference implementation can be found here CVE-2021-26084_PoC. You can find additional information in the security advisory CVE-2021-26084, the underlying jira.atlassian.com reported issue CONFSERVER-67940, the advisory of the BSI CB-K21/0917 confluence上传文件出错. 2017-04-24 13:33:04,583 ERROR [http-9001-1] [confluence.plugins.dragdrop.UploadAction] execute Failed to save file. java.lang.RuntimeException: No valid pageId or draftType specified for this action.Hi, First of all I have to warn you that the solution below is for Confluence server. I don't know if it works for Confluence Cloud. To create a page based in a template you can use the following URL a:Jun 13, 2023 · location ~ .*\/pages\/createpage-entervariables.action.*$ { return 403; } 重启后，继续观察，发现再有相关路径的访问全部被拦截 经过查找资料发现，这是confluence的一个漏洞，名称叫做注入漏洞，编号：CVE-2021-26084 2022-02-08 01:43:51,182 ERROR [http-nio-8090-exec-16 url: /pages/createpage-entervariables.action] [confluence.plugins.synchrony.SynchronyContextProvider] getContextMap-- url: /pages/createpage-entervariables.action | traceId: fbae4c9dce6517bb | userName: anonymous | action: createpage-entervariablesSep 1, 2021 · Information Security Services, News, Files, Tools, Exploits, Advisories and Whitepapers CVE-2021-26084 (PoC) | Confluence Server Webwork OGNL injection. An OGNL injection vulnerability exists that would allow an authenticated user, and in some instances unauthenticated user, to execute arbitrary code on a Confluence Server or Data Center instance.{"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"Confluence_OGNLInjection.py","path":"Confluence_OGNLInjection.py","contentType":"file ... /pages/createpage-entervariables.action POST /pages/createpage-entervariables.action HTTP/1.1 Host: 127.0.0.1:8090 Accept-Encoding: gzip, deflate Accept: ` Accept-Language: en User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36 Connection: close Content-Type: application ... Sep 18, 2021 · 漏洞复现： POST /pages/createpage-entervariables.action HTTP/1.1 Host: 192.168 Atlassian Confluence 远程代码执行 漏洞 复现（CVE-2021-26084） LaoG的博客 The Confluence CVE-2021-26084 critical vulnerability is in active exploitation, quick mitigation on ASM is to add the following URL to the Disallowed URL: /pages/createpage-entervariables.action Make sure that you enable blocking on the 'Ilegal URL' violation. Patch/update your Confluence: Link t...You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window.日常渗透发现的某企业存在Confluence未授权rce的漏洞，隔了一个周末后发现被waf拦截了，所以多了个和waf对抗的故事..... 1、HTTP隧道传输/ HTTP pipeline【失败】 通过使用 Connection: keep-alive 达到一次传输多个http包的效果； POSTAtlassian Confluence Server是澳大利亚 Atlassian 公司的一套具有企业知识管理功能，并支持用于构建企业WiKi的协同软件的服务器版本。. 经过查找资料发现，这是 confluence 的一个 漏洞 ，名称叫做 注入漏洞 ，编号： CVE- 2021 - 26084。. 这台 confluence 应用的访问是用nginx做的 ...Sep 15, 2021 · A vulnerabilidade é uma injeção de OGNL (Object-Graph Navigation Language) em um dos modelos "Velocity" (mecanismo de modelagem) do Confluence que pode ser acionado acessando "/pages/createpage-entervariables.action" e possivelmente outros URLs também. Algumas explorações de prova de conceito (PoC) e nossos dados sugerem URLs adicionais ... Notes. Verified that this currently works in version 5.10.8 but does not work on 6.1.1. Workaround. Using the rest api api/content still allows the user to create a page with a macroWe did a recursive grep for <strong>createpage-entervariables.vm</strong> and we found this file <strong>xwork.xml</strong> which seems to contain url patterns (routes) along with the Classes (and methods) where actual implementation exists.</p> <p dir=\"auto\"><a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://user-images... Apr 24, 2017 · confluence上传文件出错. 2017-04-24 13:33:04,583 ERROR [http-9001-1] [confluence.plugins.dragdrop.UploadAction] execute Failed to save file. java.lang.RuntimeException: No valid pageId or draftType specified for this action. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"Confluence_OGNLInjection.py","path":"Confluence_OGNLInjection.py","contentType":"file ... EC2 에 CentOS 8 이 사라져서 Rocky Linux 를 market place 에서 찾아서 설치했고 EBS 를 새로운 인스턴스에 붙이려고 했는데 EBS와 EC2 의 가용 영역이 다른 관계로 붙지가 않아서 데이터 이관때문에 여러 가지 삽질을 좀 했습니다. The Confluence CVE-2021-26084 critical vulnerability is in active exploitation, quick mitigation on ASM is to add the following URL to the Disallowed URL: /pages/createpage-entervariables.action Make sure that you enable blocking on the 'Ilegal URL' violation. Patch/update your Confluence: Link t...Hi, First of all I have to warn you that the solution below is for Confluence server. I don't know if it works for Confluence Cloud. To create a page based in a template you can use the following URL a:Exploit for Confluence Server 7.12.4 - 'OGNL injection' Remote Code Execution (RCE) (Unauthenticated) 2021-26084 CVE-2021-26084You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window.You're on your way to the next level! Join the Kudos program to earn points and save your progress.漏洞复现： POST /pages/createpage-entervariables.action HTTP/1.1 Host: 192.168 CVE -2022-26134 漏洞 复现( Confluence OGNL 注入 rce 漏洞 ) qq_17754023的博客A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. CVE-2021-26084 is an OGNL injection vulnerability allowing an unauthenticated attacker to execute arbitrary code on the targeted instance. It may be worth noting that statements from the vendor indicate this vulnerability is being actively exploited in the wild and that affected servers should be patched imediately.Sep 15, 2021 · The Core Issue The vulnerability is an Object-Graph Navigation Language (OGNL) injection in one of Confluence’s “Velocity” (templating engine) templates that could be triggered by accessing “/pages/createpage-entervariables.action” and potentially other URLs as well. 2022-02-08 01:43:51,182 ERROR [http-nio-8090-exec-16 url: /pages/createpage-entervariables.action] [confluence.plugins.synchrony.SynchronyContextProvider] getContextMap-- url: /pages/createpage-entervariables.action | traceId: fbae4c9dce6517bb | userName: anonymous | action: createpage-entervariablesLooking over some of our honeypot logs today, I noticed one IP address, 60.223.74.99, scanning for several older Confluence vulnerabilities. Confluence is the collaboration component of Atlassian's suite of developer tools [1].Atlassian Confluence OGNL表达式注入代码执行漏洞 CVE-2021-26084 漏洞描述. Atlassian Confluence是企业广泛使用的wiki系统，其部分版本中存在OGNL表达式注入漏洞。Jul 4, 2010 · Atlassian Confluence OGNL表达式注入代码执行漏洞 CVE-2021-26084 漏洞描述. Atlassian Confluence是企业广泛使用的wiki系统，其部分版本中存在OGNL表达式注入漏洞。 We did a recursive grep for <strong>createpage-entervariables.vm</strong> and we found this file <strong>xwork.xml</strong> which seems to contain url patterns (routes) along with the Classes (and methods) where actual implementation exists.</p> <p dir=\"auto\"><a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://user-images...在填写数据库信息的页面，PostgreSQL数据库地址为db，数据库名称confluence，用户名密码均为postgres。 漏洞复现： POST /pages/createpage-entervariables.action HTTP/1.1 Host: 192.168You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window.The text was updated successfully, but these errors were encountered:La vulnerabilidad es una inyección de Object-Graph Navigation Language (OGNL) en una de las plantillas "Velocity" (motor de plantillas) de Confluence que se podría activar mediante el acceso a "/pages/createpage-entervariables.action" y posiblemente a otras URL también. Algunos exploits de pruebas de concepto (PoC) y nuestros datos sugieren ...Atlassian Confluence Server是澳大利亚 Atlassian 公司的一套具有企业知识管理功能，并支持用于构建企业WiKi的协同软件的服务器版本。. 经过查找资料发现，这是 confluence 的一个 漏洞 ，名称叫做 注入漏洞 ，编号： CVE- 2021 - 26084。. 这台 confluence 应用的访问是用nginx做的 ...Documentation. Usage and admin help. Community. Answers, support, and inspiration. System Status. Cloud services health. Suggestions and bugs. Feature suggestions and bug reportsCVE-2021-26084 (PoC) | Confluence Server Webwork OGNL injection. An OGNL injection vulnerability exists that would allow an authenticated user, and in some instances unauthenticated user, to execute arbitrary code on a Confluence Server or Data Center instance.Jun 12, 2018 · Hi - I'd like to use a hyperlink in Excel to automatically create a page in Confluence using a template. Currently I have a button on a Confluence page that uses a template to create a new page. Clicking this button goes to a URL that guides the creation of a page in a certain space using the templa... Confluence seems to grab labels defined in Templates only, neglecting any other labels defined in labelString parameter.. The class com.atlassian.confluence.pages.actions.PageVariablesAction contains the following line within the method execute(): Documentation. Usage and admin help. Community. Answers, support, and inspiration. System Status. Cloud services health. Suggestions and bugs. Feature suggestions and bug reports漏洞复现： POST /pages/createpage-entervariables.action HTTP/1.1 Host: 192.168 通报： Confluence 远程 代码 执行 漏洞 （ CVE - 2021 - 26084 ）被黑产大规模利用 qcloud_security的博客Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.1. Create a global template (or use existing one) from General Configuration > Global Templates and Blueprints > Add Global Template. 2. After Template is created, edit it, if you have an existing template you want to use, edit that one instead. URL will contain entityId of the template, like such:https://company.atlassian.net/wiki/pages/createpage-entervariables.action? templateId=595cdeb6-bba8-4a3d-81fd-31902b6bb504 &spaceKey=WEB &title=myTitleWithDate &newSpaceKey=WEB &fromPageId=1354170460. But this is not working, I get a featureless error message from confluence.Sep 25, 2017 · The opposite if I use “createpage-entervariables.Action”. In this case, “templateId” is used and the site uses the given template, but “labelsString” is ignored. Adding the label to the template is not an option, because the label is one part fixed text (moderated_by_) and another part dynamically generated with “$Action.remoteUser.Name”. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window.在填写数据库信息的页面，PostgreSQL数据库地址为db，数据库名称confluence，用户名密码均为postgres。 漏洞复现： POST /pages/createpage-entervariables.action HTTP/1.1 Host: 192.168Hi. I'd like to write a macro that creates a page from a template and adds a dynamically generated label. Now I know that "createpage.Action" uses "labelsString" and adds a label to the new page, but it ignores "templateId". The opposite if I use "createpage-entervariables.Action".id: CVE-2021-26084 info: name: Confluence Server - Remote Code Execution author: dhiyaneshDk,philippedelteil severity: critical description: Confluence Server and Data Center contain an OGNL injection vulnerability that could allow an authenticated user, and in some instances an unauthenticated user, to execute arbitrary code on a Confluence Server or Data Center instance.Aug 25, 2021 · 近日，Atlassian官方发布了Confluence Server Webwork OGNL 注入漏洞（CVE-2021-26084）的安全公告，远程攻击者在经过身份验证或在特定环境下未经身份验证的情况下，可构造OGNL表达式进行注入，实现在 Confluence Server或Data Center上执行任意代码，CVSS评分为9.8。. 请相关用户 ... Sep 5, 2021 · URL 파라미터 로그인 하지 않고 공격 가능 비고 /pages/createpage-entervariables: querystring: O: 로그인 없이 가능 /login.action: token Dec 2, 2021 · 文章目录1. confluence路径穿越与命令之执行 (CVE-2019-3396)1.1 利用2. Confluence OGNL表达式注入代码执行漏洞（CVE-2021-26084）2.1 利用参考文章1. confluence路径穿越与命令之执行 (CVE-2019-3396)影响版本：6.14.2版本前通过该漏洞，攻击者可以读取任意文件，或利用Velocity模板注入执行任意命令。 #!/usr/bin/python3 # Exploit Title: Confluence Server Webwork OGNL injection (PreAuth-RCE) # Google Dork: N/A # Date: 09/01/2021 # Exploit Author: h3v0x # Vendor ... Create from template button not working. We created a meeting template in one of our space. We added a button using "Create from template" macro that creates a page from our meeting template. But everytime any user clicks on the button a dialogue shows up, but nothing happens. Even from the left sidebar, when we select the template it does ...#!/bin/bash # Filename : cve-2021-26084-update.sh # Description: Temporary workaround for CVE-2021-26084 for Confluence instances running on Linux based Operating ... A vulnerabilidade é uma injeção de OGNL (Object-Graph Navigation Language) em um dos modelos "Velocity" (mecanismo de modelagem) do Confluence que pode ser acionado acessando "/pages/createpage-entervariables.action" e possivelmente outros URLs também. Algumas explorações de prova de conceito (PoC) e nossos dados sugerem URLs adicionais ...The vulnerability is an Object-Graph Navigation Language (OGNL) injection in one of Confluence’s “Velocity” (templating engine) templates that could be triggered by accessing “/pages/createpage-entervariables.action” and potentially other URLs as well. Some proof-of-concept (PoC) exploits and our data suggest additional URLs, although ...Add the basic Create From Template macro to a page pointing to the template to be used and save the page. In View Mode, right click on the Create from Template button and select Copy Link Address. Navigate to the page that will be the parent page of the pages created using the link being created. Identify your Space Key.在填写数据库信息的页面，PostgreSQL数据库地址为db，数据库名称confluence，用户名密码均为postgres。 漏洞复现： POST /pages/createpage-entervariables.action HTTP/1.1 Host: 192.168The Confluence CVE-2021-26084 critical vulnerability is in active exploitation, quick mitigation on ASM is to add the following URL to the Disallowed URL: /pages/createpage-entervariables.action Make sure that you enable blocking on the 'Ilegal URL' violation. Patch/update your Confluence: Link t...Confluence seems to grab labels defined in Templates only, neglecting any other labels defined in labelString parameter.. The class com.atlassian.confluence.pages.actions.PageVariablesAction contains the following line within the method execute():https://company.atlassian.net/wiki/pages/createpage-entervariables.action? templateId=595cdeb6-bba8-4a3d-81fd-31902b6bb504 &spaceKey=WEB &title=myTitleWithDate &newSpaceKey=WEB &fromPageId=1354170460. But this is not working, I get a featureless error message from confluence.
BlackBerry® のインシデント対応チーム は、先ごろ発見された Confluence Server と Data Center の脆弱性 ( CVE-2021-26084) で最も一般的な攻撃者の TTP（戦術、技法、手順）について、 ブルーチームの防御の観点に関する記事 で取り上げました。. この記事では、攻撃の .... Seattle children
We did a recursive grep for <strong>createpage-entervariables.vm</strong> and we found this file <strong>xwork.xml</strong> which seems to contain url patterns (routes) along with the Classes (and methods) where actual implementation exists.</p> <p dir=\"auto\"><a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://user-images...Jun 13, 2023 · location ~ .*\/pages\/createpage-entervariables.action.*$ { return 403; } 重启后，继续观察，发现再有相关路径的访问全部被拦截 经过查找资料发现，这是confluence的一个漏洞，名称叫做注入漏洞，编号：CVE-2021-26084 Jan 18, 2022 · Check an IP Address, Domain Name, or Subnet. e.g. 40.77.167.237, microsoft.com, or 5.188.10.0/24 Sep 10, 2021 · Confluence is a collaboration wiki tool used to help teams to collaborate and share knowledge efficiently. With confluence, we can capture project requirements, assign tasks to specific users, and manage several calendars at once. Click to share on Twitter (Opens in new window) Click to share on Facebook (Opens in new window) Click to print (Opens in new window) Click to share on LinkedIn (Opens in new window)We did a recursive grep for <strong>createpage-entervariables.vm</strong> and we found this file <strong>xwork.xml</strong> which seems to contain url patterns (routes) along with the Classes (and methods) where actual implementation exists.</p> <p dir=\"auto\"><a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://user-images...#!/bin/bash # Filename : cve-2021-26084-update.sh # Description: Temporary workaround for CVE-2021-26084 for Confluence instances running on Linux based Operating ... Sep 5, 2021 · /pages/createpage-entervariables.action Make sure that you enable blocking on the 'Ilegal URL' violation. Patch/update your Confluence: 文章目录1. confluence路径穿越与命令之执行 (CVE-2019-3396)1.1 利用2. Confluence OGNL表达式注入代码执行漏洞（CVE-2021-26084）2.1 利用参考文章1. confluence路径穿越与命令之执行 (CVE-2019-3396)影响版本：6.14.2版本前通过该漏洞，攻击者可以读取任意文件，或利用Velocity模板注入执行任意命令。Sep 1, 2021 · The Exploit Database is maintained by OffSec, an information security training company that provides various Information Security Certifications as well as high end penetration testing services. CVE-2021-26084 is an OGNL injection vulnerability allowing an unauthenticated attacker to execute arbitrary code on the targeted instance. It may be worth noting that statements from the vendor indicate this vulnerability is being actively exploited in the wild and that affected servers should be patched imediately.Sep 5, 2021 · /pages/createpage-entervariables.action Make sure that you enable blocking on the 'Ilegal URL' violation. Patch/update your Confluence: {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":".gitignore","path":".gitignore","contentType":"file"},{"name":"CVE-2021-26084.py","path ...Sep 3, 2021 · “For example, simply visiting /pages/doenterpagevariables.action should render the velocity template file which was modified i.e. createpage-entervariables.vm,” security researcher and bug ... Sep 15, 2021 · The Core Issue The vulnerability is an Object-Graph Navigation Language (OGNL) injection in one of Confluence’s “Velocity” (templating engine) templates that could be triggered by accessing “/pages/createpage-entervariables.action” and potentially other URLs as well. Aug 10, 2022 · Atlassian Confluence是一个专业的企业知识管理与协同软件，也可以用于构建企业wiki。. 。. 该软件可实现团队成员之间的协作和知识共享。. 一共复现5个漏洞：暴力破解、CVE-2015-8399任意文件读取、CVE-2021-26084远程代码执行、CVE-2021-26085受限的文件读取、CVE-2022-26134 OGNL ... You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window.Atlassian Confluence OGNL表达式注入代码执行漏洞 CVE-2021-26084 漏洞描述. Atlassian Confluence是企业广泛使用的wiki系统，其部分版本中存在OGNL表达式注入漏洞。CVE-2021-26084 is an OGNL injection vulnerability allowing an unauthenticated attacker to execute arbitrary code on the targeted instance. It may be worth noting that statements from the vendor indicate this vulnerability is being actively exploited in the wild and that affected servers should be patched imediately.Confluence Server and Data Center; CONFSERVER-12101; labelString parameter values supplied to createpage-entervariables.action is omitted.