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CVE-2026-28741 CSRF Protection Bypass Allows Updating a User's Authentication Method

🗓️ 15 Apr 2026 10:13:33Reported by MattermostType 
cvelist
 cvelist
🔗 www.cve.org👁 48 Views

Mattermost CSRF flaw allows updating a user's authentication method via CSRF on several versions.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-28741
15 Apr 202610:13
–attackerkb
bdu_fstec
BDU FSTEC
Mattermost CSRF
5 Jun 202600:00
–bdu_fstec
circl
Circl
CVE-2026-28741
15 Apr 202612:08
–circl
cnnvd
CNNVD
Mattermost 安全漏洞
15 Apr 202600:00
–cnnvd
cve
CVE
CVE-2026-28741
15 Apr 202610:13
–cve
euvd
EUVD
EUVD-2026-22875
17 Apr 202615:31
–euvd
github
Github Security Blog
Mattermost doesn't validate CSRF tokens on an authentication endpoint
17 Apr 202615:31
–github
nessus
Tenable Nessus
Mattermost Server 10.11.x <= 10.11.13 / 11.3.x < 11.3.3 / 11.4.x < 11.4.3 / 11.5.x < 11.5.1 / 11.6.0 Multiple Vulnerabilities (MMSA-2026-00624 / MMSA-2026-00625)
24 Apr 202600:00
–nessus
mend
Mend
CVE-2026-28741
15 Apr 202610:13
–mend
nvd
NVD
CVE-2026-28741
15 Apr 202611:16
–nvd
Rows per page
[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "10.11.12",
        "status": "affected",
        "version": "10.11.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "11.5.0",
        "status": "affected",
        "version": "11.5.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "11.4.2",
        "status": "affected",
        "version": "11.4.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "11.3.2",
        "status": "affected",
        "version": "11.3.0",
        "versionType": "semver"
      },
      {
        "version": "10.11.13",
        "status": "unaffected"
      },
      {
        "version": "11.5.1",
        "status": "unaffected"
      },
      {
        "version": "11.4.3",
        "status": "unaffected"
      },
      {
        "version": "11.3.3",
        "status": "unaffected"
      }
    ]
  }
]

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15 Apr 2026 10:13Current
CVSS 3.16.8
EPSS0.00176
SSVC
48