CVE-2023-23604

6.5 MEDIUM

Published: June 02, 2023 Modified: December 18, 2025

Description

A duplicate `SystemPrincipal` object could be created when parsing a non-system html document via `DOMParser::ParseFromSafeString`. This could have lead to bypassing web security checks. This vulnerability affects Firefox < 109.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://bugzilla.mozilla.org/show_bug.cgi?id=1802346

Source: security@mozilla.org

Issue Tracking Permissions Required Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2023-01/

Source: security@mozilla.org

Vendor Advisory

https://bugzilla.mozilla.org/show_bug.cgi?id=1802346

Source: af854a3a-2127-422b-91ae-364da2661108

Issue Tracking Permissions Required Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2023-01/

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score

6.5 / 10.0

EPSS (Exploit Probability)

0.0%

7th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-863

Affected Vendors

mozilla

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