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CVE-2025-11776

🗓️ 14 Nov 2025 07:58:52Reported by MattermostType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 7 Views🌐 WEB

CVE-2025-11776: Guest users can discover archived public channels in Mattermost versions below 11.

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Detection
Affected
Refs
Paths
Social
NVD
[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "<11",
        "status": "affected",
        "version": "<11",
        "versionType": "semver"
      },
      {
        "version": "11.0.0",
        "status": "unaffected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
team_idpath/api/v4/teams/{team_id}/channels/search_archivedGuest users can access archived public channels via the search_archived endpoint, enabling discovery of archived channels without proper access restrictions.CWE-863

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17 Nov 2025 17:52Current
6.5Medium risk
Vulners AI Score6.5
CVSS 3.14.3
EPSS0.00039
SSVC
7