What is CVE-2026-41228?

CVE-2026-41228 is a critical-severity vulnerability in Froxlor, classified under PHP Remote File Inclusion. CVSS score: 10.0/10. Published 2026-04-23.

How severe is CVE-2026-41228?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Vulnerability in Froxlor

CVE-2026-41228

Froxlor is open source server administration software. Prior to version 2.3.6, the Froxlor API endpoint `Customers.update` (and `Admins.update`) does not validate the `def_language` parameter against the list of available language files. A…

EPSS: 0.001 (24.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Froxlor — versions < 2.3.6

Weakness classification (CWE)

CWE-98 — PHP Remote File Inclusion

References

https://github.com/froxlor/froxlor/security/advisories/GHSA-w59f-67xm-rxx7 (x_refsource_CONFIRM)
https://github.com/froxlor/froxlor/commit/bc5e6dbaa90e6f3573129da640595e8c770e1d0c (x_refsource_MISC)
https://github.com/froxlor/froxlor/releases/tag/2.3.6 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-41228?: CVE-2026-41228 is a critical-severity vulnerability in Froxlor, classified under PHP Remote File Inclusion. CVSS score: 10.0/10. Published 2026-04-23.
How severe is CVE-2026-41228?: Critical severity. CVSS v3 base score is 10.0 out of 10.