CVE-2021-4221

2022-12-2200:00:00

mozilla

www.cve.org

rtl character

user confusion

spoofing attacks

firefox for android

vulnerability

AI Score

5.8

Confidence

High

EPSS

0.001

Percentile

37.2%

JSON

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. <br>This bug only affects Firefox for Android. Other operating systems are unaffected.<br>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.

CNA Affected

[
  {
    "vendor": "Mozilla",
    "product": "Firefox",
    "versions": [
      {
        "version": "unspecified",
        "lessThan": "92",
        "status": "affected",
        "versionType": "custom"
      }
    ]
  }
]