CVE-2024-7524
Last modified
CVE-2024-7524 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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. EPSS estimates a 0.46% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 129.0 |
| Mozilla | Firefox Esr | < 115.14 |
| Mozilla | Firefox Esr | >= 116.0, < 128.1 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1909241Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2024-33/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-34/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-35/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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