CVE-2026-7460

mailcow-dockerized 2026-03b - Stored XSS in Queue Manager via unescaped

Published May 20, 2026 CVSS 4.0 · 7.4 High EPSS < 1% KEV · Not listed
Description
mailcow-dockerized contains a stored cross-site scripting vulnerability in the administrator Queue Manager. The Queue Manager fetches mail queue entries from /api/v1/get/mailq/all, copies server-controlled Postfix queue fields into DataTables rows, and renders several of those fields as HTML without adequate output encoding.



This issue affects mailcow-dockerized: 2026-03b.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Mailcow
Mailcow mailcow Dockerized
Vendors & Products Mailcow
Mailcow mailcow Dockerized
Type Values Removed Values Added
Description mailcow-dockerized contains a stored cross-site scripting vulnerability in the administrator Queue Manager. The Queue Manager fetches mail queue entries from /api/v1/get/mailq/all, copies server-controlled Postfix queue fields into DataTables rows, and renders several of those fields as HTML without adequate output encoding. This issue affects mailcow-dockerized: 2026-03b.
Title mailcow-dockerized 2026-03b - Stored XSS in Queue Manager via unescaped
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 7.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Fluid Attacks
Published
Updated
May 20, 2026, 12:48 PM
Reserved
Apr 29, 2026, 6:02 PM
Status
Deferred
Published
May 20, 2026, 4:16 AM
Modified
Jul 24, 2026, 8:10 AM