GHSA-4m3g-6r7g-jv4f

GHSA-4m3g-6r7g-jv4f · Arbitrary JavaScript execution due to using outdated libraries

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### Summary gradio-pdf projects with dependencies on the pdf.js library are vulnerable to CVE-2024-4367, which allows arbitrary JavaScript execution. ### PoC 1. Generate a pdf file with a malicious script in the fontmatrix. (This will run `alert(‘XSS’)`.) [poc.pdf](https://github.com/user-attachments/files/15516798/poc.pdf) 2. Run the app. In this PoC, I've used the demo for a simple proof.  3. Upload a PDF file containing the script.  4. 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 1. https://codeanlabs.com/blog/research/cve-2024-4367-arbitrary-js-execution-in-pdf-js/ 2. https://github.com/mozilla/pdf.js/pull/18015

CVSS 3.6 · Niedrig · Korrektur verfügbar

Veröffentlicht

2024-06-05T14:15:50Z

Aktualisiert

2024-12-02T05:49:21.567066Z

Technologie-Stack: python

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