Home/CVE/XWiki Rendering is a generic rendering system that converts textual input in a given syntax (wiki syntax, HTML, etc) int
CVE

CVE-2025-66474

XWiki Rendering is a generic rendering system that converts textual input in a given syntax (wiki syntax, HTML, etc) int

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.

HIGH · CVSS 8.8 EPSS 0.00678
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-95Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
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Affected Products & Versions

3
xwiki xwiki-rendering< 16.10.10
xwiki xwiki-rendering>= 17.0.0 and < 17.4.3
xwiki xwiki-renderingall versions
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Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven org.xwiki.rendering:xwiki-rendering-xml HIGH fixed in 16.10.10
⚠

Public Exploits & PoCs

3
pocjira.xwiki.org · XRENDERING-693jira.xwiki.org
pocjira.xwiki.org · XRENDERING-792jira.xwiki.org
pocjira.xwiki.org · XRENDERING-793jira.xwiki.org
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Scoring & Timeline

8.8
HIGH · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Dec 2025 · 10:16 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/xwiki/xwiki-platform/commit/12b780ccd5bca5fc8f74f46648d7e02fa04fbc11Patch
https://github.com/xwiki/xwiki-rendering/commit/9b71a2ee035815cfc29cebbfe81dbdd98f941d49Patch
https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-9xc6-c2rm-f27pPatchVendor Advisory
https://jira.xwiki.org/browse/XWIKI-23378PatchVendor Advisory
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