CVE-2026-26279

9.1 CRITICAL
Published: March 03, 2026 Modified: March 05, 2026
View on NVD

Description

Froxlor is open source server administration software. Prior to 2.3.4, a typo in Froxlor's input validation code (== instead of =) completely disables email format checking for all settings fields declared as email type. This allows an authenticated admin to store arbitrary strings in the panel.adminmail setting. This value is later concatenated into a shell command executed as root by a cron job, where the pipe character | is explicitly whitelisted. The result is full root-level Remote Code Execution. This vulnerability is fixed in 2.3.4.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/froxlor/Froxlor/security/advisories/GHSA-33mp-8p67-xj7c
Source: security-advisories@github.com
Exploit Mitigation Vendor Advisory
https://github.com/froxlor/froxlor/releases/tag/2.3.4
Source: security-advisories@github.com
Release Notes

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.1 / 10.0
EPSS (Exploit Probability)
0.6%
69th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

froxlor