CVE-2026-27174 | MajorDoMo (aka Major Domestic Module) allows unauthenticated… | CVSS 9.8 CRITICAL

Description

MajorDoMo (aka Major Domestic Module) allows unauthenticated remote code execution via the admin panel's PHP console feature. An include order bug in modules/panel.class.php causes execution to continue past a redirect() call that lacks an exit statement, allowing unauthenticated requests to reach the ajax handler in inc_panel_ajax.php. The console handler within that file passes user-supplied input from GET parameters (via register_globals) directly to eval() without any authentication check. An attacker can execute arbitrary PHP code by sending a crafted GET request to /admin.php with ajax_panel, op, and command parameters.

Metadata

CVE ID: CVE-2026-27174
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-02-18 15:22 UTC
Published: 2026-02-18 21:10 UTC
Last updated: 2026-03-05 01:31 UTC
Primary CWE: CWE-94
Improper Control of Generation of Code ('Code Injection')
Vendor / Product: sergejey / MajorDoMo
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
sergejey	MajorDoMo	—	0 ≤ *

Weakness (CWE)

CWE	Source	Description
CWE-94	cna	Improper Control of Generation of Code ('Code Injection')

CVSS scores (2)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3	CRITICAL	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References (3)

MajorDoMo Revisited: What I Missed in 2023 https://chocapikk.com/posts/2026/majordomo-revisited/
Fix PR: sergejey/majordomo#1177 https://github.com/sergejey/majordomo/pull/1177
VulnCheck Advisory: MajorDoMo Unauthenticated Remote Code Execution via Admin Console Eval https://www.vulncheck.com/advisories/majordomo-unauthenticated-remote-code-execution-via-admin-console-eval