CVE-2026-41229

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.

CVSS v3.1 Score

9.1

CRITICAL

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

EPSS — Exploit Prediction

0.0007

Probability of exploitation

0.21%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-94 CWE-94

Affected Products

Vendor	Product	Versions
froxlor	froxlor	< 2.3.6

References

Advisories & Patches

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

Exploits

https://github.com/froxlor/froxlor/security/advisories/GHSA-gc9w-cc93-rjv8 https://github.com/froxlor/froxlor/security/advisories/GHSA-gc9w-cc93-rjv8

Other References

https://github.com/froxlor/froxlor/releases/tag/2.3.6

Frequently Asked Questions

What is CVE-2026-41229? +

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. It has a CVSS v3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2026-41229? +

CVE-2026-41229 has a CVSS v3.1 score of 9.1 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0007, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-41229? +

CVE-2026-41229 affects products from froxlor, specifically: froxlor. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-41229? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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