CVE-2026-26279

CRITICAL EPSS 52.0%
Published Mar 3, 20264mo ago · Modified Jun 17, 20262w ago
9.1 CVSS 3.1
Critical
Find Similar
Published Mar 3, 2026 4mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
9.1
Exploitability
2.3
Impact
6.0
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Changed
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
52.0% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-482
CWE-78 OS Command Injection Injection

Affected Products 1

VendorProductVersionRange
froxlorfroxlor* <2.3.4

References 3

  • github.com https://github.com/froxlor/Froxlor/security/advisories/GHSA-33mp-8p67-xj7c
    ExploitMitigationVendor Advisory
  • github.com https://github.com/froxlor/froxlor/commit/22249677107f8f39f8d4a238605641e87dab4343
    Patch
  • github.com https://github.com/froxlor/froxlor/releases/tag/2.3.4
    Release Notes

Remediation

  • github.com https://github.com/froxlor/froxlor/commit/22249677107f8f39f8d4a238605641e87dab4343
    Patch