GHSA-34fj-r5gq-7395 is a critical-severity (CVSS 9.9) CWE-95 vulnerability in org.xwiki.platform:xwiki-platform-search-ui. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-34fj-r5gq-7395 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
XWiki Platform: Remote code execution from account via SearchSuggestSourceSheet
Real-World Exposure
org.xwiki.platform:xwiki-platform-search-ui☕org.xwiki.platform:xwiki-platform-search-ui☕org.xwiki.platform:xwiki-platform-search-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 with edit right on any page can execute any code on the server by adding an object of type XWiki.SearchSuggestSourceClass to their user profile or any other page. This compromises the confidentiality, integrity and availability of the whole XWiki installation.
To reproduce on an instance, as a user without script nor programming rights, add an object of type XWiki.SearchSuggestSourceClass to your profile page. On this object, set every possible property to }}}{{async}}{{groovy}}println("Hello from Groovy!"){{/groovy}}{{/async}} (i.e., name, engine, service, query, limit and icon). Save and display the page, then append ?sheet=XWiki.SearchSuggestSourceSheet to the URL. If any property displays as Hello from Groovy!}}}, then the instance is vulnerable.
Patches
This vulnerability has been patched in XWiki 14.10.20, 15.5.4 and 15.10 RC1.
Workarounds
This patch can be manually applied to the document XWiki.SearchSuggestSourceSheet.
References
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.xwiki.platform:xwiki-platform-search-ui | ≥ 5.2-milestone-2&&< 14.10.20 | 14.10.20 |
| ☕Maven | org.xwiki.platform:xwiki-platform-search-ui | ≥ 15.0-rc-1&&< 15.5.4 | 15.5.4 |
| ☕Maven | org.xwiki.platform:xwiki-platform-search-ui | ≥ 15.6-rc-1&&< 15.10-rc-1 | 15.10-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-search-ui. 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-search-ui to 14.10.20 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-34fj-r5gq-7395 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-34fj-r5gq-7395 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-34fj-r5gq-7395. 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-34fj-r5gq-7395 in your dependencies?
O3 detects GHSA-34fj-r5gq-7395 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.