CVE-2024-7524

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

Medium · published August 6, 2024

CVSS v3.1
6.1
EPSS
0%
Percentile
41.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00489 · 41.1th percentile
Published
2024-08-06T12:38Z
EPSS history
Timeline
  • 06 AUG 12:38Z
    Firefox adds web-compatibility shims in place of some tracking scripts blocked by Enhanced Tracking Protection
    cvelistv5