CVE-2026-27174

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://chocapikk.com/posts/2026/majordomo-revisited/	Exploit Third Party Advisory
https://github.com/sergejey/majordomo/pull/1177	Exploit Issue Tracking
https://www.vulncheck.com/advisories/majordomo-unauthenticated-remote-code-execution-via-admin-console-eval	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mjdm:majordomo:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-02-18 22:16

Updated : 2026-06-17 10:26

NVD link : CVE-2026-27174

Mitre link : CVE-2026-27174

CVE.ORG link : CVE-2026-27174

JSON object : View

Products Affected

mjdm

majordomo

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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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."}, {"lang": "es", "value": "MajorDoMo (tambi\u00e9n conocido como Major Domestic Module) permite la ejecuci\u00f3n remota de c\u00f3digo no autenticada a trav\u00e9s de la funci\u00f3n de consola PHP del panel de administraci\u00f3n. Un error de orden de inclusi\u00f3n en modules/panel.class.php provoca que la ejecuci\u00f3n contin\u00fae m\u00e1s all\u00e1 de una llamada a redirect() que carece de una declaraci\u00f3n exit, permitiendo que las solicitudes no autenticadas lleguen al manejador ajax en inc_panel_ajax.php. El manejador de consola dentro de ese archivo pasa la entrada proporcionada por el usuario desde los par\u00e1metros GET (a trav\u00e9s de register_globals) directamente a eval() sin ninguna verificaci\u00f3n de autenticaci\u00f3n. Un atacante puede ejecutar c\u00f3digo PHP arbitrario enviando una solicitud GET manipulada a /admin.php con los par\u00e1metros ajax_panel, op y command."}], "lastModified": "2026-06-17T10:26:47.783", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mjdm:majordomo:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7008978E-8DE1-4811-958F-3AFB3847B919"}], "operator": "OR"}]}], "sourceIdentifier": "disclosure@vulncheck.com"}