Improper access control in XWiki platform - CVE-2023-29513
Published: April 18, 2023 / Updated: May 5, 2026
Vulnerability identifier: #VU129971
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-29513
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
XWiki platform
XWiki platform
Software vendor:
XWiki
XWiki
Description
The vulnerability allows a remote user to create a new user account even when registration is disabled.
The vulnerability exists due to improper access control in the distribution/firstadminuser.wiki template macro when rendering the template in the wrong context. A remote user can invoke the template through a crafted request to create a new user account even when registration is disabled.
Exploitation requires guest view rights on at least one document, and on installations starting with XWiki 14.5 a valid CSRF token is also required.
Remediation
Install security update from vendor's website.