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

Related CVEs

CVE-2023-23604

Key Information

GHSA ID

GHSA-5997-5448-jfqf

Published

June 2, 2023 6:30 PM

Last Modified

April 4, 2024 4:29 AM

CVSS Score

5.0 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: September 12, 2025 6:34 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.