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TI-2026-29837 Aliases CVE-2026-41228GHSA-w59f-67xm-rxx7

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

Priority HIGH 76CWE-98Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-98.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00524 44th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed froxlor (froxlor): 2.3.6froxlor/froxlor (Packagist): 2.3.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
froxlorfroxlorbefore 2.3.62.3.6Patch availableCNA
—froxlor/froxlor (Packagist)before 2.3.62.3.6Patch availableGHSA-w59f-67xm-rxx7
  • froxlor Vendorfroxlor Affected before 2.3.6 Fixed in 2.3.6 Patch available CNA
  • froxlor/froxlor (Packagist) Vendor— Affected before 2.3.6 Fixed in 2.3.6 Patch available GHSA-w59f-67xm-rxx7

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:froxlor:froxlor:*:*:*:*:*:*:*:*before 2.3.6Vulnerablefroxlor
  • cpe:2.3:a:froxlor:froxlor:*:*:*:*:*:*:*:* Versions before 2.3.6 Vulnerable ·froxlor

Remediation

  • Fix · CNA froxlor (froxlor) Fixed in 2.3.6
  • Fix · GHSA-w59f-67xm-rxx7 froxlor/froxlor (Packagist) Fixed in 2.3.6 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-41228
  2. 2026-10-03 Alias added: GHSA-w59f-67xm-rxx7
  3. 2026-10-25 EPSS moved to the below the 50th percentile

References

Exploit 1

Patch 1

Advisory 1

Other 2

  • TI-2023-00300 Command Injection in froxlor/froxlor CVSS 3.1HIGH 8.8
  • TI-2023-02973 Improper Restriction of Excessive Authentication Attempts in froxlor/froxlor CVSS 3.1CRITICAL 9.8
  • TI-2023-01234 Authentication Bypass by Primary Weakness in froxlor/froxlor CVSS 3.1CRITICAL 9.8
  • TI-2023-01911 Unrestricted Upload of File with Dangerous Type in froxlor/froxlor CVSS 3.1HIGH 8.8
  • TI-2026-29838 Froxlor has a PHP Code Injection via Unescaped Single Quotes in userdata.inc.php Generation (MysqlServer API) CVSS 3.1CRITICAL 9.1
  • TI-2023-00832 Code Injection in froxlor/froxlor CVSS 3.1HIGH 8.8
See all 46 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences