GHSA-q55c-hmpf-6h2g
LOWAzuraCast/AzuraCast vulnerable to cross-site scripting
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
Blast Radius
azuracast/azuracastReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.
Description
AzuraCast/AzuraCast prior to version 0.18.0 is vulnerable to stored cross-site scripting. An issue was identified where a user who already had an AzuraCast account could update their display name to inject malicious JavaScript into the header menu of the site. In a majority of cases, this menu is only visible to the current logged-in user (pages like the Administer Users page are unaffected by this vulnerability), but if a higher-privileged administrator uses the Log In As feature to masquerade as a user, then the JavaScript injection could exfiltrate certain data. Anonymous members of the public cannot exploit this vulnerability in an AzuraCast installation, so it is primarily of concern for multi-tenant installations (i.e. resellers).
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | azuracast/azuracast | all versions | 0.18.0 |
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 azuracast/azuracast. 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 azuracast/azuracast to 0.18.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-q55c-hmpf-6h2g 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-q55c-hmpf-6h2g 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-q55c-hmpf-6h2g. 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-q55c-hmpf-6h2g in your dependencies?
O3 detects GHSA-q55c-hmpf-6h2g across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.