XSS in Mailcow Mailcow-Dockerized
CVE-2026-7460
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.003 (24.5th percentile) — read the EPSS interpretation.
Affected products
- Mailcow Mailcow-dockerized — versions 2026-03b
Weakness classification (CWE)
References
- help@fluidattacks.com (third-party-advisory)
- help@fluidattacks.com (product)