GHSA-gfp2-6qhm-7x43
The WikiManager REST API allows any user to create wikis
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
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
Impact
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.
Patches
The problem has been patched in versions 15.10.15, 16.4.6 and 16.10.0 of the REST module.
Workarounds
There's no workaround other than upgrading the dependency.
References
- JIRA ticket: https://jira.xwiki.org/browse/XWIKI-22490
- Commit of the fix: https://github.com/xwiki/xwiki-platform/commit/82aa670106c7f5e6238ca6ed59a52d1800e05b99
For more information
If you have any questions or comments about this advisory:
- Open an issue in Jira XWiki.org
- Email us at Security Mailing List
Attribution
You can specify here who reported the issue.
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 GHSA-gfp2-6qhm-7x43 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 GHSA-gfp2-6qhm-7x43 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 GHSA-gfp2-6qhm-7x43. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-gfp2-6qhm-7x43 in your dependencies?
O3 detects GHSA-gfp2-6qhm-7x43 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.