GHSA-v2rr-xw95-wcjx
HIGHPrivilege escalation (PR)/remote code execution from account through Menu.UIExtensionSheet
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-menu☕org.xwiki.platform:xwiki-platform-menu-ui☕org.xwiki.platform:xwiki-platform-menu-uiReal-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 who can edit their own user profile can execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents. This can be reproduced with the following steps:
- As an advanced user, use the object editor to add an object of type
UIExtensionClassto your user profile. Set the value "Extension Point ID" to{{/html}}{{async async=false cache=false}}{{groovy}}println("Hello from Groovy!"){{/groovy}}{{/async}} - Open
<xwiki-host>/xwiki/bin/edit/XWiki/<username>?sheet=Menu.UIExtensionSheetwhere<xwiki-host>is the URL of your XWiki installation and<username>is your user name.
If the text Hello from Groovy!" selected="selected"> is displayed in the output, the attack succeeded.
Patches
This has been patched in XWiki 14.10.8 and 15.3 RC1 by adding proper escaping.
Workarounds
The patch can be manually applied to the document Menu.UIExtensionSheet, only three lines need to be changed.
References
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.xwiki.platform:xwiki-platform-menu | ≥ 5.1-rc-1&&< 14.10.8 | 14.10.8 |
| ☕Maven | org.xwiki.platform:xwiki-platform-menu-ui | ≥ 5.1-rc-1&&< 14.10.8 | 14.10.8 |
| ☕Maven | org.xwiki.platform:xwiki-platform-menu-ui | ≥ 15.0-rc-1&&< 15.3-rc-1 | 15.3-rc-1 |
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-menu. 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-menu to 14.10.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-v2rr-xw95-wcjx 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-v2rr-xw95-wcjx 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-v2rr-xw95-wcjx. 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-v2rr-xw95-wcjx in your dependencies?
O3 detects GHSA-v2rr-xw95-wcjx across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.