GHSA-5hv6-mh8q-q9v8
HIGHGHSA-5hv6-mh8q-q9v8 is a high-severity (CVSS 8.5) Code Injection vulnerability in org.xwiki.platform:xwiki-platform-oldcore. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-5hv6-mh8q-q9v8 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
RCE in XWiki
Real-World Exposure
org.xwiki.platform:xwiki-platform-oldcore☕org.xwiki.platform:xwiki-platform-oldcoreReal-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 with SCRIPT right (EDIT right before XWiki 7.4) can gain access to the application server Servlet context which contains tools allowing to instantiate arbitrary Java objects and invoke methods that may lead to arbitrary code execution.
Patches
It has been patched in both version XWiki 12.5 and XWiki 11.10.6.
Workarounds
The only workaround is to give SCRIPT right only to trusted users.
References
https://jira.xwiki.org/browse/XWIKI-17423
It's been reported by the GitHub Security Lab under https://jira.xwiki.org/browse/XWIKI-17141.
For more information
If you have any questions or comments about this advisory:
- Open an issue in Jira XWiki
- Email us at our security mailing list
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.xwiki.platform:xwiki-platform-oldcore | all versions | 11.10.6 |
| ☕Maven | org.xwiki.platform:xwiki-platform-oldcore | ≥ 12.0&&< 12.5 | 12.5 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
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-oldcore. 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-oldcore to 11.10.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-5hv6-mh8q-q9v8 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-5hv6-mh8q-q9v8 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-5hv6-mh8q-q9v8. 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-5hv6-mh8q-q9v8 in your dependencies?
O3 detects GHSA-5hv6-mh8q-q9v8 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.