GHSA-h4xf-wx99-jmv4
MEDIUMGHSA-h4xf-wx99-jmv4 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in microweber/microweber. O3 Security confirms whether GHSA-h4xf-wx99-jmv4 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Microweber Cross Site Scripting (XSS) vulnerability
Blast Radius
microweber/microweberReal-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
Microweber 2.0.16 was discovered to contain a Cross Site Scripting (XSS) vulnerability via userfiles\modules\settings\admin.php.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | microweber/microweber | all versions | No fix |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for microweber/microweber. 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 microweber/microweber has shipped for GHSA-h4xf-wx99-jmv4 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-h4xf-wx99-jmv4 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-h4xf-wx99-jmv4. 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-h4xf-wx99-jmv4 in your dependencies?
O3 detects GHSA-h4xf-wx99-jmv4 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.