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CVE-2025-13821 User profile update exposes password hash and MFA secrets

🗓️ 16 Feb 2026 11:57:25Reported by MattermostType 
cvelist
 cvelist
🔗 www.cve.org👁 19 Views

Auth users can exfiltrate password hashes and MFA secrets via messages in profile nickname changes.

Related
Affected
Refs
[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "11.1.2",
        "status": "affected",
        "version": "11.1.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "10.11.9",
        "status": "affected",
        "version": "10.11.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "11.2.1",
        "status": "affected",
        "version": "11.2.0",
        "versionType": "semver"
      },
      {
        "version": "11.3.0",
        "status": "unaffected"
      },
      {
        "version": "11.1.3",
        "status": "unaffected"
      },
      {
        "version": "10.11.10",
        "status": "unaffected"
      },
      {
        "version": "11.2.2",
        "status": "unaffected"
      }
    ]
  }
]

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