GHSA-653m-r33x-39ff
MEDIUMGHSA-653m-r33x-39ff is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in geminabox. O3 Security confirms whether GHSA-653m-r33x-39ff is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Geminabox contains Cross-site Scripting
Blast Radius
geminaboxReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects RubyGems packages — download data is not available via public APIs for these ecosystems.
Description
Stored cross-site scripting (XSS) vulnerability in "geminabox" (Gem in a Box) before 0.13.10 allows attackers to inject arbitrary web script via the "homepage" value of a ".gemspec" file, related to views/gem.erb and views/index.erb.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 💎RubyGems | geminabox | all versions | 0.13.10 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for geminabox. 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 geminabox to 0.13.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-653m-r33x-39ff 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-653m-r33x-39ff 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-653m-r33x-39ff. 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-653m-r33x-39ff in your dependencies?
O3 detects GHSA-653m-r33x-39ff across RubyGems dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.