GHSA-wx69-rvg3-x7fc is a critical-severity (CVSS 9) Cross-site Scripting (XSS) vulnerability in nodebb. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-wx69-rvg3-x7fc is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
XSS via prototype pollution in NodeBB
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, a proxy for how much of the ecosystem is exposed.
nodebbnpmDescription
Impact
A prototype pollution vulnerability in the uploader module allowed a malicious user to inject arbitrary data (i.e. javascript) into the DOM, theoretically allowing for an account takeover when used in conjunction with a path traversal vulnerability disclosed at the same time as this report.
Patches
The vulnerability has been patched as of v1.18.5.
Workarounds
Cherry-pick commit hash 1783f918bc19568f421473824461ff2ed7755e4c to receive this patch in lieu of a full upgrade.
For more information
If you have any questions or comments about this advisory:
- Email us at [email protected]
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | nodebb | ≥ 1.15.0&&< 1.18.5 | 1.18.5 |
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 nodebb. 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 nodebb to 1.18.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-wx69-rvg3-x7fc 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-wx69-rvg3-x7fc 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-wx69-rvg3-x7fc. 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-wx69-rvg3-x7fc in your dependencies?
O3 detects GHSA-wx69-rvg3-x7fc across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.