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CVE-2026-41228

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

Published: Apr 23, 2026Updated: Apr 27, 2026 Sources: CVE List NVDCWE-98
NVD MITRE
9.9CVSSCRITICAL
EPSS Score
0.5%
Top 59.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-98

Affected Products

froxlorfroxlor
On-premWeb App
Enterprise Software / itsm-monitoring
froxlorEnterprise Softwareaka froxlor

Exploitability

Official Patch Available

References

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

Timeline

Published
Apr 23, 2026
Last Updated
Apr 27, 2026

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