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: 0.005 (41.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

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: 9.9/10. Published 2026-04-23.
How severe is CVE-2026-41228?
Critical severity. CVSS v3 base score is 9.9 out of 10.