CVE-2026-41228criticalCWE-98

CVE-2026-41228: critical vulnerability in froxlor

Froxlor has Local File Inclusion via path traversal in API `def_language` parameter that leads to Remote Code Execution

Published

Follow this CVE+ Monitor froxlor+ Monitor froxlor/froxlor

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 10epss 0.5%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products
froxlor · froxlor
Related CVEs — froxlor

In the same product, most dangerous first.

CVE-2026-54348HIGHFroxlor: Second-Order SQL Injection via `Admins.add` `ipaddress` Parameter Allows Full Database ExfiltrationEPSS 0.7%CVE-2026-113678CRITICALFroxlor before 2.3.15 Symlink Following Privilege Escalation via Traffic CronEPSS 0.6%CVE-2026-62988CRITICALFroxlor: Credential and 2FA secret disclosure via Froxlor API endpointsEPSS 0.6%CVE-2026-30932HIGHFroxlor is vulnerable to BIND zone file injection via unsanitized DNS record content in DomainZones APIEPSS 0.6%CVE-2026-100714CRITICALFroxlor before 2.3.12 Command Injection via letsencryptchallengepathEPSS 0.5%CVE-2026-41229CRITICALFroxlor has a PHP Code Injection via Unescaped Single Quotes in userdata.inc.php Generation (MysqlServer API)EPSS 0.5%