CVE-2021-29965: Mozilla Firefox

Medium severity, CVSS 5.3. EPSS: 0.7% chance of exploitation in the next 30 days.

A malicious website that causes an HTTP Authentication dialog to be spawned could trick the built-in password manager to suggest passwords for the currently active website instead of the website that triggered the dialog. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 89.

Affected products

• Mozilla Firefox: before 89.0 (fixed in 89.0)

Published 2021-06-24. Last modified 2026-06-17.