CVE-2026-41228
CRITICALFroxlor has Local File Inclusion via path traversal in API `def_language` parameter that leads to Remote Code Execution
Title source: cnaDescription
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. An authenticated customer can set `def_language` to a path traversal payload (e.g., `../../../../../var/customers/webs/customer1/evil`), which is stored in the database. On subsequent requests, `Language::loadLanguage()` constructs a file path using this value and executes it via `require`, achieving arbitrary PHP code execution as the web server user. Version 2.3.6 fixes the issue.
References (3)
Scores
CVSS v3
9.9
EPSS
0.0006
EPSS Percentile
17.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Details
CWE
CWE-98
Status
published
Products (1)
froxlor/froxlor
< 2.3.6
Published
Apr 23, 2026
Tracked Since
Apr 23, 2026