CVE-2024-7518: Mozilla Firefox

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Select options could obscure the fullscreen notification dialog. This could be used by a malicious site to perform a spoofing attack. This vulnerability affects Firefox < 129, Firefox ESR < 128.1, and Thunderbird < 128.1.

Affected products

• Mozilla Firefox: before 129 (fixed in 129)
• Mozilla Firefox ESR: before 128.1 (fixed in 128.1)
• Mozilla Thunderbird: before 128.1 (fixed in 128.1)

Published 2024-08-06. Last modified 2026-06-17.