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CVE-2024-45801GHSA-MMHX-HMJR-R674

Tampering by prototype polution in DOMPurify

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.5.4, 3.1.3
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It has been discovered that malicious HTML using special nesting techniques can bypass the depth checking added to DOMPurify in recent releases. It was also possible to use Prototype Pollution to weaken the depth check. This renders dompurify unable to avoid cross site scripting (XSS) attacks. This issue has been addressed in versions 2.5.4 and 3.1.3 of DOMPurify. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • cure53 DOMPurify

    fixed in 2.5.4; From 3.0.0 · fixed in 3.1.3

  • dompurifynpm

    fixed in 2.5.4

  • dompurifynpm

    From 3.0.0 · fixed in 3.1.3

References 3

GitHub · cure53/DOMPurify