PT-2026-20512 · Majordomo · Majordomo

Valentin Lobstein · Published 2026-02-18 · Updated 2026-05-05 · CVE-2026-27176

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions MajorDoMo versions (affected versions not specified)

Description MajorDoMo contains a reflected cross-site scripting (XSS) issue in the 'command.php' file. The $qry parameter is directly included in the HTML page without proper sanitization using htmlspecialchars(), both within an input field's value attribute and in a paragraph element. An attacker can inject arbitrary JavaScript by creating a URL with malicious content in the $qry parameter.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-27176

Affected Products

Majordomo

References · 7

• 🔥 https://github.com/sergejey/majordomo/pull/1177 · Exploit
• 🔥 https://chocapikk.com/posts/2026/majordomo-revisited · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-27176 · Security Note
• https://twitter.com/CVEnew/status/2024258084072542555 · Twitter Post
• https://vulncheck.com/advisories/majordomo-reflected-cross-site-scripting-in-commandphp · Note
• https://twitter.com/pdnuclei_bot/status/2051572636686438720 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2024330553663651944 · Twitter Post