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CVE-2026-40873

🗓️ 21 Apr 2026 19:15:39Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 59 Views🌐 WEB

Mailcow dockerized is vulnerable to stored cross site scripting via quarantine attachment filenames before 2026-03b.

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Detection
Affected
Refs
Paths
Vulners
Node
[
  {
    "vendor": "mailcow",
    "product": "mailcow-dockerized",
    "versions": [
      {
        "version": "< 2026-03b",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
attachment filenamesnested/quarantineThe Quarantine details modal injects attachment filenames into HTML without proper escaping, leading to Cross-Site Scripting (XSS).CWE-79, CWE-80

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26 Oct 2026 21:10Current
6Medium risk
Vulners AI Score6
CVSS 48.9
EPSS0.0042
SSVC
59