GHSA-gx2m-mcc2-r4p3
MEDIUMGHSA-gx2m-mcc2-r4p3 is a medium-severity (CVSS 5.1) vulnerability in wlc. O3 Security confirms whether GHSA-gx2m-mcc2-r4p3 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
wlc: print_html outputs API data without HTML escaping
Blast Radius
wlcReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
Impact
The HTML output format in wlc embeds API response data into HTML without escaping, allowing cross-site scripting when the output is rendered in a browser.
Patches
Workarounds
The only vulnerable code path is HTML output which is opt-in.
References
Weblate thanks @fg0x0 for reporting this on GitHub.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | wlc | all versions | 2.0.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for wlc. 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 wlc to 2.0.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-gx2m-mcc2-r4p3 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-gx2m-mcc2-r4p3 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-gx2m-mcc2-r4p3. 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-gx2m-mcc2-r4p3 in your dependencies?
O3 detects GHSA-gx2m-mcc2-r4p3 across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.