CVE-2026-27175

CVE-2026-27175 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 1 public exploit, including a Metasploit module exploits/multi/http/majordomo_cmd_injection_rce.

AI-analyzed exploit summary This Metasploit module exploits an unauthenticated command injection vulnerability in MajorDoMo's remote command handler via a race condition in the cycle_execs.php worker script. The payload is injected through the 'param' parameter and executed by the worker script.

MajorDoMo (aka Major Domestic Module) is vulnerable to unauthenticated OS command injection via rc/index.php. The $param variable from user input is interpolated into a command string within double quotes without sanitization via escapeshellarg(). The command is inserted into a database queue by safe_exec(), which performs no sanitization. The cycle_execs.php script, which is web-accessible without authentication, retrieves queued commands and passes them directly to exec(). An attacker can exploit a race condition by first triggering cycle_execs.php (which purges the queue and enters a polling loop), then injecting a malicious command via the rc endpoint while the worker is polling. The injected shell metacharacters expand inside double quotes, achieving remote code execution within one second.