Which versions of Xwiki are affected by CVE-2025-29926?

Organizations using XWiki Platform face notable risk from CVE-2025-29926 rated CVSS 7.9. Exploitation could compromise the security of affected deployments.. A patch is available.

Is there a public PoC exploit available for CVE-2025-29926?

Yes, a public proof-of-concept exploit is available for CVE-2025-29926. Prioritise patching immediately. EPSS: 1.5%.

How to fix or mitigate CVE-2025-29926?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Vendor patch is available.

Xwiki CVE-2025-29926

Q: What is the CVSS score of CVE-2025-29926?

CVE-2025-29926 has a CVSS 4.0 base score of 7.9 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 1.5%.

HIGH

Improper Authorization (CWE-285)

2025-03-19 security-advisories@github.com

Authentication Bypass Xwiki

7.9

CVSS 4.0 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

7.9 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:32 vuln.today

Patch released

Mar 28, 2026 - 18:32 nvd

Patch available

PoC Detected

May 13, 2025 - 13:34 vuln.today

Public exploit code

CVE Published

Mar 19, 2025 - 18:15 nvd

HIGH 7.9

DescriptionGitHub Advisory

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.

AnalysisAI

XWiki Platform is a generic wiki platform. Rated high severity (CVSS 7.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-285. 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. Affected products include: Xwiki. Version information: Prior to 15.10.15.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.