VYPR
Critical severity9.9NVD Advisory· Published Apr 23, 2026· Updated Apr 27, 2026

CVE-2026-41228

CVE-2026-41228

Description

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.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
froxlor/froxlorPackagist
< 2.3.62.3.6

Affected products

2

Patches

Vulnerability mechanics

References

5

News mentions

0

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