CVE-2025-29926 The WikiManager REST API allows any user to create wikis
An attacker can create new wikis via the REST API to gain administrator privileges, requiring the optional WikiManager extension to be installed.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-29926?
CVE-2025-29926 is a high-severity missing authorization vulnerability in Xwiki Xwiki, published on 19 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2025-29926?
6 open source packages ship an affected version, including org.xwiki.platform:xwiki-platform-wiki-rest-default. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.xwiki.platform:xwiki-platform-wiki-rest-default Maven | From 16.0.0-rc-1 | 16.4.6 |
org.xwiki.platform:xwiki-platform-wiki-rest-default Maven | From 16.0.0-rc-1 | 16.4.6 |
org.xwiki.platform:xwiki-platform-wiki-rest-default Maven | From 16.5.0-rc-1 | 16.10.0 |
org.xwiki.platform:xwiki-platform-wiki-rest-default Maven | From 16.5.0-rc-1 | 16.10.0 |
org.xwiki.platform:xwiki-platform-wiki-rest-default Maven | From 5.4-rc-1 | 15.10.15 |
org.xwiki.platform:xwiki-platform-wiki-rest-default Maven | From 5.4-rc-1 | 15.10.15 |
Products include Xwiki Xwiki.
How do I fix CVE-2025-29926?
Upgrade org.xwiki.platform:xwiki-platform-wiki-rest-default to a fixed version for your release line: 16.4.6, 16.10.0 or 15.10.15.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-29926 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-29926 exists.
Other vulnerabilities in Xwiki Xwiki
- CVE-2025-24893 XWiki Platform Eval Injection
- CVE-2025-53836 XWiki Rendering is vulnerable to RCE attacks when processing nested macros
- CVE-2024-55662 XWiki allows remote code execution through the extension sheet
- CVE-2024-55877 XWiki allows remote code execution from account through macro descriptions and XWiki.XWikiSyntaxMacrosList
- CVE-2024-37901 XWiki Platform vulnerable to remote code execution from account via SearchSuggestConfigSheet
Sources
Also known as GHSA-gfp2-6qhm-7x43.