CVE-2026-41229

Critical

Description

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.

SeverityCritical

CVSS9.1

Exploit probability—

ProductFroxlor

PublishedApr 23, 2026

First seenApr 23, 2026

Weakness typeCWE-94Code injection

How to fix

Update

froxlor froxlor2.3.6 or later
froxlor/froxlor2.3.6 or later

Affected products

Product	Affected versions	Fixed in
froxlor froxlor	v < 2.3.6	2.3.6
froxlor/froxlorPackagist	v < 2.3.6	2.3.6

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