CVE-2026-33229: XWiki

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

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.

Affected products

• XWiki XWiki: from 17.0.0, before 17.4.8 (fixed in 17.4.8); from 17.5.0, before 17.10.1 (fixed in 17.10.1)

Published 2026-04-08. Last modified 2026-07-24.