Missing Authorization in XWiki platform - CVE-2024-31981
Published: April 10, 2024 / Updated: May 5, 2026
Vulnerability identifier: #VU129903
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2024-31981
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: XWiki
Affected software:
XWiki platform
XWiki platform
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to missing authorization in PDF export templates when processing a user-supplied PDF template. A remote user can register a user account with the username PDFClass and define a crafted style property to execute arbitrary code.
Exploitation requires that XWiki.PDFClass does not already exist.
How to mitigate CVE-2024-31981
Install security update from vendor's website.