GHSA-4m3g-6r7g-jv4f
LOWGHSA-4m3g-6r7g-jv4f is a low-severity (CVSS 3.6) vulnerability in gradio-pdf. O3 Security confirms whether GHSA-4m3g-6r7g-jv4f is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Arbitrary JavaScript execution due to using outdated libraries
Blast Radius
gradio-pdfReal-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
Summary
gradio-pdf projects with dependencies on the pdf.js library are vulnerable to CVE-2024-4367, which allows arbitrary JavaScript execution.
PoC
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Generate a pdf file with a malicious script in the fontmatrix. (This will run
alert(‘XSS’).) poc.pdf -
Run the app. In this PoC, I've used the demo for a simple proof.
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Upload a PDF file containing the script.
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Check that the script is running.
Impact
Malicious scripts can be injected into the code, and when linked with vulnerabilities such as CSRF, it can cause even greater damage. In particular, It can become a source of further attacks, especially when linked to social engineering.
Mitigation
Upgrade the pdf.js to v4.2.67, which removes the vulnerability. (or set the option isEvalSupported to false.)
Reference
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | gradio-pdf | all versions | 0.0.10 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for gradio-pdf. 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 gradio-pdf to 0.0.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-4m3g-6r7g-jv4f 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-4m3g-6r7g-jv4f 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-4m3g-6r7g-jv4f. 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-4m3g-6r7g-jv4f in your dependencies?
O3 detects GHSA-4m3g-6r7g-jv4f across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.