CVE-2026-26279— Froxlor Admin-to-Root Privilege Escalation via Input Validation Bypass + OS Command Injection

Froxlor Admin-to-Root Privilege Escalation via Input Validation Bypass + OS Command Injection

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

OS命令中使用的特殊元素转义处理不恰当(OS命令注入)

Froxlor 安全漏洞

Froxlor是Froxlor团队的一套轻量级服务器管理软件。 Froxlor 2.3.4之前版本存在安全漏洞，该漏洞源于输入验证代码中的拼写错误完全禁用了电子邮件格式检查，可能导致经过身份验证的管理员在panel.adminmail设置中存储任意字符串，进而造成根级别远程代码执行。

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