GHSA-5qqx-32hw-5vx4
MEDIUMGHSA-5qqx-32hw-5vx4 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in gleez/cms. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-5qqx-32hw-5vx4 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Gleez CMS Vulnerable to Cross-site Scripting in media/imagecache/resize
Blast Radius
gleez/cmsReal-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
An issue was discovered in Gleez CMS v1.2.0. There is XSS via media/imagecache/resize.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | gleez/cms | all versions | No fix |
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 gleez/cms. 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.
Remediation status
No patched version of gleez/cms has shipped for GHSA-5qqx-32hw-5vx4 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Mitigate without a patch
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-5qqx-32hw-5vx4 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-5qqx-32hw-5vx4. 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-5qqx-32hw-5vx4 in your dependencies?
O3 detects GHSA-5qqx-32hw-5vx4 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.