CVE-2026-27178

🔴 HIGH

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 unauthentic...

Published
Feb 18, 2026
Last Modified
Feb 20, 2026
Views
3
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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.

Affected Products (1)

mjdm - majordomo

Version: -

CVSS Scores

CVSS 3.1 7.2
7.2
HIGH
CVSS 2.0 7.2

Additional Information

Source
disclosure@vulncheck.com
State
Analyzed

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