Auth bypass in Xwiki
CVE-2025-29926
XWiki Platform is a generic wiki platform. Prior to 15.10.15, 16.4.6, and 16.10.0, any user can exploit the WikiManager REST API to create a new wiki, where the user could become an administrator and so performs other attacks on the farm. Note that this REST API is not bundled in XWiki Standard by default: it needs to be installed manually through the extension manager. The problem has been patched in versions 15.10.15, 16.4.6 and 16.10.0 of the REST module.
EPSS: 0.005 (41.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Xwiki — versions 5.4
- Xwiki Xwiki-platform — versions >= 5.4-rc-1, < 15.10.15, >= 16.0.0-rc-1, < 16.4.6, >= 16.5.0-rc-1, < 16.10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Exploit, x_refsource_MISC, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-29926?
- CVE-2025-29926 is a critical-severity vulnerability in Xwiki, classified under Improper Authorization. CVSS score: 9.8/10. Published 2025-03-19.
- How severe is CVE-2025-29926?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2025-29926 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.