CVE Vulnerability

CVE-2021-23974

The DOMParser API did not properly process '' elements for escaping. This could be used as an mXSS vector to bypass an HTML Sanitizer. This vulnerability affects Firefox < 86.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

6.1 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1528997%2C1683627 Issue Tracking Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-07/ Release Notes Vendor Advisory
https://security.gentoo.org/glsa/202104-10 Third Party Advisory
Configurations

Configuration 1

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

Published : 2021-02-26 02:15

Updated : 2022-05-23 07:07

NVD link : CVE-2021-23974

Mitre link : CVE-2021-23974

Products Affected
No products.
CWE
NVD-CWE-noinfo