CVE Vulnerability

CVE-2021-4140

It was possible to construct specific XSLT markup that would be able to bypass an iframe sandbox. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

10 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References
Link Resource
https://www.mozilla.org/security/advisories/mfsa2022-02/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-01/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1746720 Exploit Issue Tracking
https://www.mozilla.org/security/advisories/mfsa2022-03/ Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
Information

Published : 2022-12-22 08:15

Updated : 2023-01-03 08:03

NVD link : CVE-2021-4140

Mitre link : CVE-2021-4140

Products Affected
No products.
CWE
CWE-91