Add GHSA-prqw-jx4x-vw4x (OSV.dev XSS security research)#7686
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… 512669343) This advisory contains a javascript: URL in the references field to demonstrate that osv.dev renders reference URLs without URL scheme filtering, enabling stored XSS. This is authorized security research. The advisory will be withdrawn after verification. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Hi @ikow, thank you for providing information about the context around GHSA-prqw-jx4x-vw4x. I'm closing this PR because my teammates and I aren't comfortable with publishing test advisories for security research purposes. If you have concerns about the behavior of OSV.dev, the OSV project accepts issues at https://github.com/google/osv.dev/issues. |
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Context
This PR adds advisory GHSA-prqw-jx4x-vw4x as part of authorized security research for Google OSS VRP Issue 512669343.
The advisory demonstrates that
javascript:URLs in thereferencesfield are not filtered by osv.dev when rendering vulnerability detail pages, enabling stored XSS.osv-xss-security-test-2026(intentionally empty, does not exist on npm)What this tests
The advisory contains a reference with
"url": "javascript:alert(document.domain)". When this advisory is imported by OSV and rendered on osv.dev, the Jinja2 template atvulnerability.html:144will render:Jinja2 auto-escaping does NOT filter
javascript:URL schemes (only escapes< > & " ').Cleanup
This advisory will be withdrawn after the vulnerability is verified. The test package does not exist on any package registry.