CVE-2021-23999

 

Published at: - 24-06-2021 04:15

Last modified: - 24-09-2022 03:03

Total changes: - 4

Description

If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System Principal and granted additional privileges that should not be granted to web content. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://bugzilla.mozilla.org/show_bug.cgi?id=1691153
• https://www.mozilla.org/security/advisories/mfsa2021-15/
• https://www.mozilla.org/security/advisories/mfsa2021-16/
• https://www.mozilla.org/security/advisories/mfsa2021-14/

 

Keywords

NVD

 

CVE-2021-23999

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures