XWiki Scripting API Bypass <17.4.8/17.10.1: Runtime Sys Compromise
CVE-2026-33229 Published on April 8, 2026
XWiki Platform affected by remote code execution with script right through unprotected Velocity scripting API
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.
Vulnerability Analysis
CVE-2026-33229 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-33229 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-33229
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Affected Versions
xwiki-platform:- Version >= 17.0.0-rc-1, < 17.4.8 is affected.
- Version >= 17.5.0-rc-1, < 17.10.1 is affected.
- Version >= 17.0.0-rc-1, < 17.4.8 is affected.
- Version >= 17.5.0-rc-1, < 17.10.1 is affected.
- Version >= 17.0.0-rc-1, < 17.4.8 is affected.
- Version >= 17.5.0-rc-1, < 17.10.1 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.