XSS in Mjdm Majordomo
CVE-2026-27176
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.004 (36.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Mjdm Majordomo
- Sergejey Majordomo — versions 0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (Exploit, Third Party Advisory, third-party-advisory)
- disclosure@vulncheck.com (issue-tracking, Exploit, patch, Issue Tracking)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-27176?
- CVE-2026-27176 is a medium-severity vulnerability in Mjdm Majordomo, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-02-18.
- How severe is CVE-2026-27176?
- Medium severity. CVSS v3 base score is 6.1 out of 10.