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CVE-2026-33229

XWiki Platform affected by remote code execution with script right through unprotected Velocity scripting API

Published: Apr 8, 2026Updated: Apr 14, 2026 Sources: CVE List NVD BDUCWE-862
9.8CRITICAL
NVD MITRE
EPSS Score
0.5%
Top 58.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Prior to 17.4.8 and 17.10.1, an improperly protected scripting API allows any user with script right to bypass the sandboxing of the Velocity scripting API and execute, e.g., arbitrary Python scripts, allowing full access to the XWiki instance and thereby compromising the confidentiality, integrity and availability of the whole instance. Note that script right already constitutes a high level of access that we don't recommend giving to untrusted users. This vulnerability is fixed in 17.4.8 and 17.10.1.

No summary for this CVE yet.

CVSS Vector Breakdown

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

CWE-862

Affected Products

XWiki PlatformСообщество свободного программного обеспечения
On-premWeb App
Web & CMS Plugins / cms-core
xwiki-platformxwiki
On-premWeb App
Web & CMS Plugins / cms-core
xwiki-platform-legacy-oldcoreorg.xwiki.platform
On-prem
Web & CMS Plugins / cms-core
xwiki-platform-oldcoreorg.xwiki.platform
On-prem
Web & CMS Plugins / cms-core
xwikixwiki
On-premWeb App
Web & CMS Plugins / cms-core
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
xwikioss-projectFRWeb & CMS Pluginsaka xwiki-platform, xwiki-commons
org.xwiki.platformoss-projectWeb & CMS Pluginsaka xwiki, xwiki platform

Exploitability

Official Patch Available
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
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References

https://github.com/xwiki/xwiki-platform/commit/9fe84da66184c05953df9466cf3a4acd15a46e63
github.com
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-h259-74h5-4rh9
github.com
https://jira.xwiki.org/secure/attachment/44323/Exploit_Velocity_Macro.webm
jira.xwiki.org
and 4 more references View all →

Timeline

Published
Apr 8, 2026
Last Updated
Apr 14, 2026

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