CVE-2024-7524

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.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.23%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Affected: Mozilla Firefox ESR
Affected: Mozilla Firefox ESR
Published at:
Updated at:

References

Link Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1909241 issue 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

Frequently Asked Questions

What is the severity of CVE-2024-7524?
CVE-2024-7524 has been scored as a medium severity vulnerability.
How to fix CVE-2024-7524?
To fix CVE-2024-7524, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-7524 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-7524 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-7524?
CVE-2024-7524 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Firefox ESR.
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