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CVE-2026-41229: froxlor vulnerability
CVE-2026-41229: critical vulnerability affecting froxlor. Check CVSS, KEV status, business impact and recommended administrator actions.
- CVSS
- 9.1 CRITICAL
- EPSS
- 39.16%
- Known exploited
- not in KEV
- Product
- froxlor
What is known
Froxlor is open source server administration software. Prior to version 2.3.6, `PhpHelper::parseArrayToString()` writes string values into single-quoted PHP string literals without escaping single quotes. When an admin with `change_serversettings` permission adds or updates a MySQL server via the API, the `privileged_user` parameter (which has no input validation) is written unescaped into `lib/userdata.inc.php`. Since this file is `require`d on every request via `Database::getDB()`, an attacker can inject arbitrary PHP code that executes as the web server user on every subsequent page load. Version 2.3.6 contains a patch.
Business impact
Successful exploitation of CVE-2026-41229, a critical vulnerability (CVSS 9.1) affecting froxlor, may affect the confidentiality, integrity or availability of the vulnerable environment. The exact impact depends on the installed version, exposed interfaces and deployment configuration.
Recommended administrator action
Confirm whether froxlor is present and compare installed versions with the vendor advisory and NVD record. Apply the vendor patch or documented mitigation; until remediation is complete, reduce exposure of affected interfaces, review relevant logs and monitor for indicators of exploitation. DataHouse can support version verification, managed patching, network exposure reduction, log review and backup validation for dedicated, cloud and colocated environments.