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CVE-2025-66474

XWiki vulnerable to remote code execution through insufficient protection against {{/html}} injection

Published: Dec 10, 2025Updated: Dec 19, 2025 Sources: CVE List NVD GHSA BDUCWE-95
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.9%
Top 46.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-95CWE-94

Affected Products

xwiki-renderingxwiki
On-prem
Web & CMS Plugins / cms-core
org.xwiki.rendering:xwiki-rendering-xmlMavenOSS Libraries
XWiki PlatformСообщество свободного программного обеспечения
On-prem
Operating Systems / linux-distro
xwikioss-projectFRWeb & CMS Pluginsaka xwiki-platform, xwiki-commons
mavenpackage-ecosystemOSS Libraries
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-9xc6-c2rm-f27p
github.com
https://github.com/xwiki/xwiki-platform/commit/12b780ccd5bca5fc8f74f46648d7e02fa04fbc11
github.com
https://github.com/xwiki/xwiki-rendering/commit/9b71a2ee035815cfc29cebbfe81dbdd98f941d49
github.com
and 6 more references View all →

Timeline

Published
Dec 10, 2025
Last Updated
Dec 19, 2025

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