CVE-2025-29926
CVE-2025-29926 is a CWE-285 vulnerability in org.xwiki.platform:xwiki-platform-wiki-rest-default. O3 Security confirms whether CVE-2025-29926 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
The WikiManager REST API allows any user to create wikis
Blast Radius
org.xwiki.platform:xwiki-platform-wiki-rest-default☕org.xwiki.platform:xwiki-platform-wiki-rest-default☕org.xwiki.platform:xwiki-platform-wiki-rest-defaultReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
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.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.xwiki.platform:xwiki-platform-wiki-rest-default | ≥ 5.4-rc-1&&< 15.10.15 | 15.10.15 |
| ☕Maven | org.xwiki.platform:xwiki-platform-wiki-rest-default | ≥ 16.0.0-rc-1&&< 16.4.6 | 16.4.6 |
| ☕Maven | org.xwiki.platform:xwiki-platform-wiki-rest-default | ≥ 16.5.0-rc-1&&< 16.10.0 | 16.10.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.xwiki.platform:xwiki-platform-wiki-rest-default. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update org.xwiki.platform:xwiki-platform-wiki-rest-default to 15.10.15 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-29926 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2025-29926 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2025-29926. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2025-29926 in your dependencies?
O3 detects CVE-2025-29926 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.