CVE-2023-35166
CRITICALCVE-2023-35166 is a critical-severity (CVSS 9.9) CWE-863 vulnerability in org.xwiki.platform:xwiki-platform-help-ui. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether CVE-2023-35166 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Privilege escalation (PR) from account through TipsPanel
Blast Radius
org.xwiki.platform:xwiki-platform-help-ui☕org.xwiki.platform:xwiki-platform-help-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
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. It's possible to execute any wiki content with the right of the TipsPanel author by creating a tip UI extension. This has been patched in XWiki 15.1-rc-1 and 14.10.5.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.xwiki.platform:xwiki-platform-help-ui | ≥ 8.1-milestone-1&&< 14.10.5 | 14.10.5 |
| ☕Maven | org.xwiki.platform:xwiki-platform-help-ui | ≥ 15.0-rc-1&&< 15.1-rc-1 | 15.1-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-help-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-help-ui to 14.10.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-35166 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-2023-35166 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-2023-35166. 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-2023-35166 in your dependencies?
O3 detects CVE-2023-35166 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.