CVE-2024-7524
Medium
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.
SeverityMedium
CVSS6.1
Exploit probability—
Product
Mozilla Firefox
PublishedAug 6, 2024
First seenAug 6, 2024
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- mozilla firefox129.0 or later
- mozilla firefox_esr115.14, 128.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 129.0 | 129.0 |
| mozilla firefox_esr | v < 115.14, 116.0 ≤ v < 128.1 | 115.14, 128.1 |
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