xwiki-platform up to 15.10.14/16.4.5/16.9.x WikiManager REST API improper authorization

Summaryinfo

A vulnerability was found in xwiki-platform up to 15.10.14/16.4.5/16.9.x. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component WikiManager REST API. Executing a manipulation can lead to improper authorization. The identification of this vulnerability is CVE-2025-29926. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in xwiki-platform up to 15.10.14/16.4.5/16.9.x. This vulnerability affects some unknown processing of the component WikiManager REST API. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-29926 since 03/12/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1548.002.

Upgrading to version 15.10.15, 16.4.6 or 16.10.0 eliminates this vulnerability. Applying the patch 82aa670106c7f5e6238ca6ed59a52d1800e05b99 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Content Management System

Name

• xwiki-platform

Version

• 15.10.0
• 15.10.1
• 15.10.2
• 15.10.3
• 15.10.4
• 15.10.5
• 15.10.6
• 15.10.7
• 15.10.8
• 15.10.9
• 15.10.10
• 15.10.11
• 15.10.12
• 15.10.13
• 15.10.14
• 16.0
• 16.1
• 16.2
• 16.3
• 16.4
• 16.4.0
• 16.4.1
• 16.4.2
• 16.4.3
• 16.4.4
• 16.4.5
• 16.5
• 16.6
• 16.7
• 16.8
• 16.9

License

• open-source

CPE 2.3info

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CPE 2.2info

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