GHSA-hhrp-qm88-xjr3
MEDIUMGHSA-hhrp-qm88-xjr3 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in valine. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-hhrp-qm88-xjr3 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Valine HTML Injection
Blast Radius
Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.
valinenpmDescription
An issue was discovered in Valine v1.3.3. It allows HTML injection, which can be exploited for JavaScript execution via an EMBED element in conjunction with a .pdf file.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | valine | all versions | 1.3.4 |
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 valine. 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 valine to 1.3.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-hhrp-qm88-xjr3 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-hhrp-qm88-xjr3 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-hhrp-qm88-xjr3. 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-hhrp-qm88-xjr3 in your dependencies?
O3 detects GHSA-hhrp-qm88-xjr3 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.