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6.1 Medium

CVE-2024-7524 Firefox adds web-compatibility shims in place of some tracking scripts blocked by Enhanced Tracking Protection

Description

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.

Affected products and versions

Product Affected versions Fixed in
Firefox 129 earliest → < 129 129
Firefox ESR 128.1 earliest → < 128.1 128.1

References

Timeline

  1. Published
  2. Last modified

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