CVE-2026-41229

CRITICAL 9.1

Froxlor has a PHP Code Injection via Unescaped Single Quotes in userdata.inc.php Generation (MysqlServer API)

CVSS Score

9.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-94
Vendor	froxlor
Product	froxlor
Published	Apr 23, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

froxlor / froxlor

< 2.3.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/froxlor/froxlor/security/advisories/GHSA-gc9w-cc93-rjv8 github.com: https://github.com/froxlor/froxlor/commit/3589ddf93ab59eb2a8971f0f56cbf6266d03c4ae github.com: https://github.com/froxlor/froxlor/releases/tag/2.3.6