PDF.js vulnerable to arbitrary JavaScript execution upon opening a malicious PDF

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.71, the 99th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the GitHub Advisory Database, published 7 May 2024. New records show when each source confirmed them.

Sources

• GitHub Advisory Database: GHSA-wgrm-67xf-hhpq
• OSV: GHSA-wgrm-67xf-hhpq
• github.com/mozilla/pdf.js/security/advisories/GHSA-wgrm-67xf-hhpq
• nvd.nist.gov/vuln/detail/CVE-2024-4367
• github.com/gogs/gogs/issues/7928
• github.com/mozilla/pdf.js/pull/18015
• github.com/mozilla/pdf.js/commit/85e64b5c16c9aaef738f421733c12911a441cec6
• bugzilla.mozilla.org/show_bug.cgi?id=1893645
• cert-portal.siemens.com/productcert/html/ssa-827383.html
• codeanlabs.com/blog/research/cve-2024-4367-arbitrary-js-execution-in-pdf-js
• github.com/mozilla/pdf.js
• github.com/mozilla/pdf.js/releases/tag/v4.2.67
• lists.debian.org/debian-lts-announce/2024/05/msg00010.html
• lists.debian.org/debian-lts-announce/2024/05/msg00012.html

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.