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TI-2026-06557 Aliases CVE-2026-7460GHSA-4wpv-p8hj-wr36

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

Priority HIGH 68CWE-79Published · Updated

Key facts

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

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

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0032 25th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
mailcowmailcow-dockerized2026-03b—No fix listedCNA
  • mailcow-dockerized Vendormailcow Affected 2026-03b Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:mailcow:mailcow\:*:*:*:*:*:*:*:*——mailcow
  • cpe:2.3:a:mailcow:mailcow\:*:*:*:*:*:*:*:* Versions — — ·mailcow

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-7460
  2. 2026-10-03 Alias added: GHSA-4wpv-p8hj-wr36

References

Advisory 1

Other 1

  • TI-2026-29528 mailcow: dockerized vulnerable to stored XSS in autodiscover logs email address field CVSS 4.0CRITICAL 9.3
  • TI-2026-29529 mailcow: dockerized vulnerable to stored XSS in Quarantine attachment filenames CVSS 4.0HIGH 8.9
  • TI-2022-13182 OS Command Injection in mailcow CVSS 3.1HIGH 8.8
  • TI-2022-18634 mailcow-dockerized critical information misrepresentation can lead to phishing attacks through Swagger UI CVSS 3.1HIGH 8.2
  • TI-2026-29527 mailcow: dockerized vulnerable to Second Order SQL Injection in quarantine category via API CVSS 3.1HIGH 7.2
  • TI-2026-29531 mailcow: dockerized vulnerable to stored XSS in user login history real_rip CVSS 4.0HIGH 7.0
See all 22 →

Sources

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