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CVE-2024-7524

Date: August 6, 2024

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.

Language: C++

Severity Score

Related Resources (6)

https://bugzilla.mozilla.org/show_bug.cgi?id=1909241
https://www.mozilla.org/security/advisories/mfsa2024-35/
https://nvd.nist.gov/vuln/detail/CVE-2024-7524
https://www.mozilla.org/security/advisories/mfsa2024-34/
https://www.mozilla.org/security/advisories/mfsa2024-33/
https://www.mend.io/vulnerability-database/CVE-2024-7524

Severity Score

Weakness Type (CWE)

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-79

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

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