CVE-2026-41228Public exploitNetwork attack vector

Authenticated code execution via traversed language inclusion

Published Apr 23, 2026 · Updated Apr 23, 2026

Path traversal in Froxlor before 2.3.6 allows remote authenticated users to execute arbitrary PHP code through the customer API. Customers.update and Admins.update store an unchecked def_language value that Language::loadLanguage appends to a path and passes to require. An authenticated customer with API access and a writable PHP file can execute code as the web server user; customer FTP and API access are enabled by default.

CVSS severity9.9
Critical
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Path traversal in Froxlor before 2.3.6 allows remote authenticated users to execute arbitrary PHP code through the customer API. Customers.update and Admins.update store an unchecked def_language value that Language::loadLanguage appends to a path and passes to require. An authenticated customer with API access and a writable PHP file can execute code as the web server user; customer FTP and API access are enabled by default.

The record

CVE
CVE-2026-41228
Published
Apr 23, 2026
Updated
Apr 23, 2026
Vendor
Froxlor
Product
Froxlor
Classifications
CWE-98, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.3.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Froxlor · Froxlorversion=< 2.3.6

Published CVSS scores

9.9GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-98Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo