Relative URLs starting with three slashes were incorrectly parsed, and a path-traversal "/../" part in the path could be used to override the specified host. This could contribute to security problems in web sites. This vulnerability affects Firefox < 120, Firefox < 115.5, and Thunderbird < 115.5.0.

Related CVEs

CVE-2023-6209

Key Information

GHSA ID

GHSA-c2fx-6qc9-26x9

Published

November 21, 2023 3:30 PM

Last Modified

November 28, 2023 9:30 PM

CVSS Score

5.0 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: June 12, 2025 6:24 AM

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