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TI-2026-21618 Aliases CVE-2026-27176GHSA-rpq9-4jjf-2xhh

MajorDoMo Reflected Cross-Site Scripting in command.php

Priority LOW 24CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.005 43rd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
sergejeyMajorDoMoall versions—No fix listedCNA
  • MajorDoMo Vendorsergejey Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mjdm:majordomo:-:*:*:*:*:*:*:*not specified by NVDVulnerablesergejey
  • cpe:2.3:a:mjdm:majordomo:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·sergejey

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-27176
  2. 2026-10-03 Alias added: GHSA-rpq9-4jjf-2xhh
  3. 2026-10-16 EPSS moved to the 50th–90th percentile
  4. 2026-10-25 EPSS moved to the below the 50th percentile

References

Exploit 2

  • TI-2026-21617 MajorDoMo Command Injection in rc/index.php via Race Condition CVSS 4.0CRITICAL 9.2
  • TI-2026-21616 MajorDoMo Unauthenticated Remote Code Execution via Admin Console Eval CVSS 4.0CRITICAL 9.3
  • TI-2026-21623 MajorDoMo Unauthenticated Module Uninstall via Market Endpoint CVSS 4.0HIGH 8.7
  • TI-2023-27813 MajorDoMo (aka Major Domestic Module) before 0662e5e allows command execution via… CVSS 3.1CRITICAL 9.8
  • TI-2026-21622 MajorDoMo Supply Chain Remote Code Execution via Update URL Poisoning CVSS 4.0CRITICAL 9.3
  • TI-2026-21621 MajorDoMo Unauthenticated SQL Injection in Commands Module CVSS 4.0HIGH 8.8
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences