CVE-2026-27181

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-27181
MajorDoMo (aka Major Domestic Module) allows unauthenticated arbitrary module uninstallation through the market module. The market module's admin() method reads gr('mode') from $_REQUEST and assigns it to $this->mode at the start of execution, making all mode-gated code paths reachable without authentication via the /objects/?module=market endpoint. The uninstall mode handler calls uninstallPlugin(), which deletes module records from the database, executes the module's uninstall() method via eval(), recursively deletes the module's directory and template files using removeTree(), and removes associated cycle scripts. An attacker can iterate through module names and wipe the entire MajorDoMo installation with a series of unauthenticated GET requests.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

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-module-uninstall-via-market-endpoint Third Party Advisory
Configurations

Configuration 1 (hide)

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

20 Feb 2026, 19:51

Type Values Removed Values Added
Summary
  • (es) MajorDoMo (también conocido como Major Domestic Module) permite la desinstalación arbitraria de módulos no autenticada a través del módulo de mercado. El método admin() del módulo de mercado lee gr('mode') de $_REQUEST y lo asigna a $this->mode al inicio de la ejecución, haciendo que todas las rutas de código protegidas por modo sean accesibles sin autenticación a través del endpoint /objects/?module=market. El gestor del modo de desinstalación llama a uninstallPlugin(), que elimina registros de módulos de la base de datos, ejecuta el método uninstall() del módulo a través de eval(), elimina recursivamente el directorio del módulo y los archivos de plantilla usando removeTree(), y elimina los scripts de ciclo asociados. Un atacante puede iterar a través de nombres de módulos y borrar toda la instalación de MajorDoMo con una serie de solicitudes GET no autenticadas.
References () https://chocapikk.com/posts/2026/majordomo-revisited/ - () https://chocapikk.com/posts/2026/majordomo-revisited/ - Exploit, Third Party Advisory
References () https://github.com/sergejey/majordomo/pull/1177 - () https://github.com/sergejey/majordomo/pull/1177 - Exploit, Issue Tracking
References () https://www.vulncheck.com/advisories/majordomo-unauthenticated-module-uninstall-via-market-endpoint - () https://www.vulncheck.com/advisories/majordomo-unauthenticated-module-uninstall-via-market-endpoint - Third Party Advisory
First Time Mjdm
Mjdm majordomo
CPE cpe:2.3:a:mjdm:majordomo:-:*:*:*:*:*:*:*

18 Feb 2026, 22:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-02-18 22:16

Updated : 2026-02-20 19:51

NVD link : CVE-2026-27181

Mitre link : CVE-2026-27181

CVE.ORG link : CVE-2026-27181

JSON object : View

Products Affected

mjdm

  • majordomo
CWE
CWE-862

Missing Authorization