CVE-2026-27175

Katalog CVE

CVSS 9.8 · Critical EPSS 7,2%

Kerentanan Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') pada mjdm majordomo. Skor CVSS 3.1 9.8 (Critical) menurut vulncheck.com.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

18 Februari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

9.8 (Critical), sumber vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

EPSS (30 hari)

7,2% peluang dieksploitasi; lebih tinggi dari 94,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://chocapikk.com/posts/2026/majordomo-revisited/ exploit · advisory pihak ketiga
• https://www.vulncheck.com/advisories/majordomo-command-injection-in-rcindexphp-via-race-condition advisory pihak ketiga
• https://github.com/sergejey/majordomo/pull/1177 exploit · issue tracking