Vulnerability Database

314,343

Total vulnerabilities in the database

CVE-2021-29953

A malicious webpage could have forced a Firefox for Android user into executing attacker-controlled JavaScript in the context of another domain, resulting in a Universal Cross-Site Scripting vulnerability. Note: This issue only affected Firefox for Android. Other operating systems are unaffected. Further details are being temporarily withheld to allow users an opportunity to update.. This vulnerability affects Firefox < 88.0.1 and Firefox for Android < 88.1.3.

  • Published: Jun 24, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-29953
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 6.1
  • AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v2:

  • Severity: Low
  • Score: 4.3
  • AV:N/AC:M/Au:N/C:N/I:P/A:N

CWEs:

OWASP TOP 10:

Software From Fixed in
mozilla / firefox - 88.0.1
mozilla / firefox - 88.1.3