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GHSA-wgrm-67xf-hhpq

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

Source: GitHub Advisory Database (reviewed) High CVE-2024-4367

Packages

EcosystemPackageAffectedFixed in
npm pdfjs-dist < 4.2.67 4.2.67

Details

As written in the advisory (Markdown source, shown as plain text).

### Impact If pdf.js is used to load a malicious PDF, and PDF.js is configured with `isEvalSupported` set to `true` (which is the default value), unrestricted attacker-controlled JavaScript will be executed in the context of the hosting domain. ### Patches The patch removes the use of `eval`: https://github.com/mozilla/pdf.js/pull/18015 ### Workarounds Set the option `isEvalSupported` to `false`. ### References https://bugzilla.mozilla.org/show_bug.cgi?id=1893645

References

External links from the advisory. They lead to third-party sites.