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CVE-2025-66474— XWiki vulnerable to remote code execution through insufficient protection against {{/html}} injection

Quick assessment

Affected
xwiki xwiki-rendering
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

XWiki Rendering是XWiki基金会的一个通用渲染系统，它将给定语法（wiki 语法、HTML 等）中的文本输入转换为另一种语法（XHTML 等）。 XWiki Rendering 16.10.9及之前版本、17.0.0-rc-1至17.4.2版本和17.5.0-rc-1至17.5.0版本存在安全漏洞，该漏洞源于html注入保护不足，可能导致远程代码执行。

AI Predicted 9.8 Difficulty: Easy EPSS 1.02% · P62
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I. Basic Information for CVE-2025-66474

Vulnerability Information
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Vulnerability Title
XWiki vulnerable to remote code execution through insufficient protection against {{/html}} injection
Source: CVE Program / CVE List V5
Vulnerability Description
XWiki Rendering is a generic rendering system that converts textual input in a given syntax (wiki syntax, HTML, etc) into another syntax (XHTML, etc). Versions 16.10.9 and below, 17.0.0-rc-1 through 17.4.2 and 17.5.0-rc-1 through 17.5.0 have insufficient protection against {{/html}} injection, which attackers can exploit through RCE. Any user who can edit their own profile or any other document can execute arbitrary script macros, including Groovy and Python macros, which enable remote code execution as well as unrestricted read and write access to all wiki contents. This issue is fixed in versions 16.10.10, 17.4.3 and 17.6.0-rc-1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
动态执行代码中指令转义处理不恰当(Eval注入)
Source: CVE Program / CVE List V5
Vulnerability Title
XWiki Rendering 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
XWiki Rendering是XWiki基金会的一个通用渲染系统，它将给定语法（wiki 语法、HTML 等）中的文本输入转换为另一种语法（XHTML 等）。 XWiki Rendering 16.10.9及之前版本、17.0.0-rc-1至17.4.2版本和17.5.0-rc-1至17.5.0版本存在安全漏洞，该漏洞源于html注入保护不足，可能导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
xwiki xwiki-rendering < 16.10.10 -

II. Public POCs for CVE-2025-66474

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III. Intelligence Information for CVE-2025-66474

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Patches & Fixes for CVE-2025-66474 (2)

Vendor Advisories for CVE-2025-66474 (1)

Other References for CVE-2025-66474 (1)

Other References for CVE-2025-66474 (3)

Same Patch Batch · xwiki · 2025-12-10 · 3 CVEs total

CVE-2025-66472 XWiki vulnerable to a reflected XSS via xredirect parameter in DeleteApplication
CVE-2025-66473 XWiki's REST APIs don't enforce any limits, leading to unavailability and OOM in large wik

IV. Related Vulnerabilities

Same product: xwiki-rendering
Same vendor: xwiki
Same weakness: CWE-95

V. Comments for CVE-2025-66474

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