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CVE-2026-27178— MajorDoMo Stored Cross-Site Scripting via Method Parameters to Shoutbox

CVSS 7.2 · High EPSS 0.04% · P13
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I. Basic Information for CVE-2026-27178

Vulnerability Information
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Vulnerability Title
MajorDoMo Stored Cross-Site Scripting via Method Parameters to Shoutbox
Source: NVD (National Vulnerability Database)
Vulnerability Description
MajorDoMo (aka Major Domestic Module) contains a stored cross-site scripting (XSS) vulnerability through method parameter injection into the shoutbox. The /objects/?method= endpoint allows unauthenticated execution of stored methods with attacker-controlled parameters. Default methods such as ThisComputer.VolumeLevelChanged pass the user-supplied VALUE parameter directly into the say() function, which stores the message raw in the shouts database table without escaping. The shoutbox widget renders stored messages without sanitization in both PHP rendering code and HTML templates. Because the dashboard widget auto-refreshes every 3 seconds, the injected script executes automatically when any administrator loads the dashboard, enabling session hijack through cookie exfiltration.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
MajorDoMo 跨站脚本漏洞
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存在跨站脚本漏洞，该漏洞源于通过/objects/?method=端点允许未经验证地执行存储的方法，并将攻击者控制的参数直接传递给say()函数，该函数将消息未经转义存储在shouts数据库表中，而shoutbox小部件在PHP渲染代码和HTML模板中未经清理渲染存储的消息，可能导致存储型跨站脚本攻击和会话劫持。
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

VendorProductAffected VersionsCPESubscribe
sergejeyMajorDoMo 0 ~ * -

II. Public POCs for CVE-2026-27178

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III. Intelligence Information for CVE-2026-27178

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

CVE-2026-271809.8 CRITICALMajorDoMo Supply Chain Remote Code Execution via Update URL Poisoning
CVE-2026-271759.8 CRITICALMajorDoMo Command Injection in rc/index.php via Race Condition
CVE-2026-271749.8 CRITICALMajorDoMo Unauthenticated Remote Code Execution via Admin Console Eval
CVE-2026-271798.2 HIGHMajorDoMo Unauthenticated SQL Injection in Commands Module
CVE-2026-271817.5 HIGHMajorDoMo Unauthenticated Module Uninstall via Market Endpoint
CVE-2026-271777.2 HIGHMajorDoMo Stored Cross-Site Scripting via Property Set Endpoint
CVE-2026-271766.1 MEDIUMMajorDoMo Reflected Cross-Site Scripting in command.php

IV. Related Vulnerabilities

Same product: MajorDoMo
Same vendor: sergejey
Same weakness: CWE-79

V. Comments for CVE-2026-27178

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