CVE-2026-27176

MajorDoMo Reflected Cross-Site Scripting in command.php

MajorDoMo (aka Major Domestic Module) contains a reflected cross-site scripting (XSS) vulnerability in command.php. The $qry parameter is rendered directly into the HTML page without sanitization via htmlspecialchars(), both in an input field value attribute and in a paragraph element. An attacker can inject arbitrary JavaScript by crafting a URL with malicious content in the qry parameter.

Affected

sergejey · MajorDoMo

CVSS v4.0 VULNCHECK

5.1 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 VULNCHECK

6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

0.69% chance of exploitation in the next 30 days, 52nd percentile

Nuclei

medium · CWE-79

Published

2026-02-18

Updated

2026-06-23

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-27176.yaml

Security advisories

• https://chocapikk.com/posts/2026/majordomo-revisited
• https://www.vulncheck.com/advisories/majordomo-reflected-cross-site-scripting-in-commandp…
• sergejey/majordomo/pull/1177

References

• CVE Record
• NVD entry