GHSA-pf4h-vrv6-cmvr is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in DNN.PLATFORM. O3 Security confirms whether GHSA-pf4h-vrv6-cmvr is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
DNN.PLATFORM Allows Reflected Cross-Site Scripting (XSS) in some TokenReplace situations with SkinObjects
Real-World Exposure
DNN.PLATFORMReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects NuGet packages — download data is not available via public APIs for these ecosystems.
Description
DNN.PLATFORM allows specially crafted content in URLs could be used with TokenReplace and not be properly sanitized by some SkinObjects. This vulnerability is fixed in 10.0.1.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| .NETNuGet | DNN.PLATFORM | ≥ 6.0.0&&< 10.0.1 | 10.0.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for DNN.PLATFORM. 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 DNN.PLATFORM to 10.0.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-pf4h-vrv6-cmvr 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-pf4h-vrv6-cmvr 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-pf4h-vrv6-cmvr. 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-pf4h-vrv6-cmvr in your dependencies?
O3 detects GHSA-pf4h-vrv6-cmvr across NuGet dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.