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CVE-2021-4221

MEDIUM CVSS: 4.3 Published: 2022-12-22 Modified: 2026-06-17

Description

If a domain name contained a RTL character, it would cause the domain to be rendered to the right of the path. This could lead to user confusion and spoofing attacks.
*This bug only affects Firefox for Android. Other operating systems are unaffected.*
*Note*: Due to a clerical error this advisory was not included in the original announcement, and was added in Feburary 2022. This vulnerability affects Firefox < 92.

Affected Platforms

Mozilla FirefoxGoogle Android

Weakness Type

NVD-CWE-Other, CWE-1007

References