CVE-2025-53837 XWiki Rendering - Remote Code Execution

XWiki Rendering < 14.10.2 and < 15.0 RC1 contains a remote code execution caused by unescaped rendering output in HTML macros, letting users with edit rights execute arbitrary script macros with programming rights, exploit requires edit access to user profile or documents.

CVSS base score 9.9 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.64% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution, File System Read, File System Write
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Published
18 September 2026
Updated
15 October 2026
Weakness
CWE-95

Vendor fix

Upgrade to versions 14.10.2 or 15.0 RC1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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