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CVE-2026-27181— MajorDoMo Unauthenticated Module Uninstall via Market Endpoint

Quick assessment

Affected
sergejey MajorDoMo
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MajorDoMo是MajorDoMo社区的一个开源DIY智能家居自动化平台。 MajorDoMo存在安全漏洞，该漏洞源于market模块的admin()方法从$_REQUEST读取gr( mode )并将其分配给$this->mode，使得所有模式控制的代码路径可通过/objects/?module=market端点无需身份验证访问，uninstall模式处理程序调用uninstallPlugin()，该函数删除数据库中的模块记录，通过eval()执行模块的uninstall()方法，递归删除模块的目录

CVSS 7.5 · High EPSS 0.96% · P60

Affected Version Matrix 1

VendorProduct Version RangeStatus
sergejey MajorDoMo ≤ * affected
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I. Basic Information for CVE-2026-27181

Vulnerability Information
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Vulnerability Title
MajorDoMo Unauthenticated Module Uninstall via Market Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
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 $this->mode at the start of execution, making all mode-gated code paths reachable without authentication via the /objects/?module=market endpoint. The uninstall mode handler calls uninstallPlugin(), which deletes module records from the database, executes the module's uninstall() method via eval(), recursively deletes the module's directory and template files using removeTree(), and removes associated cycle scripts. An attacker can iterate through module names and wipe the entire MajorDoMo installation with a series of unauthenticated GET requests.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
MajorDoMo 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MajorDoMo是MajorDoMo社区的一个开源DIY智能家居自动化平台。 MajorDoMo存在安全漏洞，该漏洞源于market模块的admin()方法从$_REQUEST读取gr( mode )并将其分配给$this->mode，使得所有模式控制的代码路径可通过/objects/?module=market端点无需身份验证访问，uninstall模式处理程序调用uninstallPlugin()，该函数删除数据库中的模块记录，通过eval()执行模块的uninstall()方法，递归删除模块的目录
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
sergejey MajorDoMo 0 ~ * -

II. Public POCs for CVE-2026-27181

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III. Intelligence Information for CVE-2026-27181

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Patches & Fixes for CVE-2026-27181 (1)

Security Blog Posts for CVE-2026-27181 (1)

Same Patch Batch · sergejey · 2026-02-18 · 8 CVEs total

CVE-2026-27180 9.8 CRITICAL MajorDoMo Supply Chain Remote Code Execution via Update URL Poisoning
CVE-2026-27175 9.8 CRITICAL MajorDoMo Command Injection in rc/index.php via Race Condition
CVE-2026-27174 9.8 CRITICAL MajorDoMo Unauthenticated Remote Code Execution via Admin Console Eval
CVE-2026-27179 8.2 HIGH MajorDoMo Unauthenticated SQL Injection in Commands Module
CVE-2026-27177 7.2 HIGH MajorDoMo Stored Cross-Site Scripting via Property Set Endpoint
CVE-2026-27178 7.2 HIGH MajorDoMo Stored Cross-Site Scripting via Method Parameters to Shoutbox
CVE-2026-27176 6.1 MEDIUM MajorDoMo Reflected Cross-Site Scripting in command.php

IV. Related Vulnerabilities

Same product: MajorDoMo
Same vendor: sergejey
Same weakness: CWE-862

V. Comments for CVE-2026-27181

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