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CVE-2026-3471 Opening a window with {{javascript:alert()}} as URL causes crash in the Mattermost Desktop App

🗓️ 18 May 2026 08:45:44Reported by MattermostType 
cvelist
 cvelist
🔗 www.cve.org👁 38 Views

Opening a window with javascript:alert in a pop-up crashes the Mattermost Desktop App on vulnerable versions.

Related
Affected
Refs
[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "6.0.1",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "5.4.13",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "version": "6.2.0",
        "status": "unaffected"
      },
      {
        "version": "6.1.1.0",
        "status": "unaffected"
      },
      {
        "version": "5.13.5.0",
        "status": "unaffected"
      }
    ]
  }
]

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