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CVE-2024-7524

Firefox adds web-compatibility shims in place of some tracking scripts blocked by Enhanced Tracking Protection.

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 129, 115.14, 128.1
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

Firefox adds web-compatibility shims in place of some tracking scripts blocked by Enhanced Tracking Protection. On a site protected by Content Security Policy in "strict-dynamic" mode, an attacker able to inject an HTML element could have used a DOM Clobbering attack on some of the shims and achieved XSS, bypassing the CSP strict-dynamic protection. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, and Firefox ESR < 128.1.

Timeline

  1. CVE published
  2. CISA SSVC assessment

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

  3. Record last updated

Affected versions

  • Mozilla Firefox

    fixed in 129

  • Mozilla Firefox ESR

    fixed in 115.14

  • Mozilla Firefox ESR

    fixed in 128.1

References 4

bugzilla.mozilla.org

mozilla.org