Improper Authorization in XWiki platform - CVE-2025-49585
Published: May 5, 2026
Vulnerability identifier: #VU129885
CSH Severity: Medium
CVSS v4: 8.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-49585
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code with the rights of another user.
The vulnerability exists due to improper access control in XClass definitions when a document containing dangerous XClass properties is later edited by a higher-privileged user. A remote user can create a malicious XClass definition to execute arbitrary code with the rights of another user.
User interaction is required because a user with script, admin, or programming right must later edit the same document.
Affected software
XWiki platform
How to mitigate CVE-2025-49585
Install security update from vendor's website.
XWiki platform - addressed in versions 15.10.16, 16.4.7, 16.10.2