GHSA-f8hv-rx9p-f9r4 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in generator-hottowel. O3 Security confirms whether GHSA-f8hv-rx9p-f9r4 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
generator-hottowel Cross-site Scripting vulnerability
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.
generator-hottowelnpmDescription
A vulnerability, which was classified as problematic, was found in generator-hottowel 0.0.11. Affected is an unknown function of the file app/templates/src/server/_app.js of the component 404 Error Handler. The manipulation leads to cross site scripting. It is possible to launch the attack remotely. The name of the patch is c17092fd4103143a9ddab93c8983ace8bf174396. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-221484.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | generator-hottowel | all versions | 0.5.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for generator-hottowel. 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 generator-hottowel to 0.5.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-f8hv-rx9p-f9r4 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-f8hv-rx9p-f9r4 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-f8hv-rx9p-f9r4. 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-f8hv-rx9p-f9r4 in your dependencies?
O3 detects GHSA-f8hv-rx9p-f9r4 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.