Vulnerability · Published Oct 28, 2026 · Assigned by GitHub_M
CVE-2026-54453OpenCATS: Authenticated Remote Code Execution via SettingsUI (manageProfessional)
High 7.2
In plain English
A high-severity injection in OpenCATS from opencats. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).
Official description
OpenCATS is an open-source applicant tracking system and recruitment CRM for staffing agencies and hiring teams. Prior to version 0.10.0, the Professional License configuration feature in `SettingsUI` (`manageProfessional`) accepts administrator-controlled license key input that is reconstructed into a PHP `define()` statement in `config.php` without safe escaping. Because the application includes `config.php`, crafted input can alter the file's PHP syntax and cause persistent arbitrary PHP execution with the web server process privileges. An authenticated administrator must have Settings module access and permission to update Professional License configuration, and `config.php` must be writable for this write-based path. Successful exploitation can read, modify or delete application data, expose candidate, contact, company, job order and user account information, alter the installation or configuration, and provide a foothold for further attacks. Unauthenticated exploitation and exploitation without Settings access are not established. This issue is fixed in version 0.10.0.
Affected products (as reported)
Weakness: CWE-74, CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
References
- https://github.com/opencats/OpenCATS/security/advisories/GHSA-627w-743r-4cg2 x_refsource_CONFIRM
- https://github.com/opencats/OpenCATS/pull/802 x_refsource_MISC
- https://github.com/opencats/OpenCATS/commit/e422abf3b75d467bdee65277f56e41dfba928fc8 x_refsource_MISC
- https://github.com/opencats/OpenCATS/tree/v0.10.0 x_refsource_MISC