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CVE-2026-1628 Mattermost allows external websites to open within the app, exposing preload functionality to non-trusted sites.

🗓️ 02 Mar 2026 13:24:21Reported by MattermostType 
cvelist
 cvelist
🔗 www.cve.org👁 27 Views

Mattermost desktop up to v5.13.3 can load external sites in the app, exposing preload scripts.

Related
Affected
Refs
[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "5.13.3",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "version": "5.13.4.0",
        "status": "unaffected"
      }
    ]
  }
]

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