CVE-2023-23604

MEDIUM

Firefox < 109.0 - Incorrect Authorization via DOMParser SystemPrincipal Bypass

Title source: llm
STIX 2.1

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.

References (2)

Core 2
Core References
Issue Tracking, Permissions Required, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1802346

Scores

CVSS v3 6.5
EPSS 0.0006
EPSS Percentile 19.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-863
Status published
Products (1)
mozilla/firefox < 109.0
Published Jun 02, 2023
Tracked Since Feb 18, 2026