Executive brief
HAX CMS, a platform used to manage and publish microsites, contains a security flaw in its gitlist plugin. This flaw allows unauthorized individuals to browse the internal file history and source code of websites managed by the system. An attacker could use this access to discover sensitive information or secrets hidden in the site's version history, potentially leading to further system compromise.
Technical details
An authorization bypass (CWE-639) exists in the gitlist plugin of HAX CMS. The vulnerability stems from the fact that git repositories are indexed by the site owner's User ID and exposed via a predictable URL endpoint (/<UserID>/gitlist/) that does not enforce authentication. A remote, unauthenticated attacker can discover or guess a User ID to browse git repositories and full commit history. This exposure can lead to the disclosure of source code and sensitive credentials or secrets previously committed to the repository. The issue is resolved in version 26.0.0.
Affected products
- haxtheweb HAX CMS (haxcms-php) >= 2.0.0, < 26.0.0
Timeline
- 2026-05-12: advisory: GitHub security advisory published by maintainer
- 2026-06-05: disclosed: CVE published to NVD
- 2026-06-05: patched: Version 26.0.0 released to address the issue