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CVE-2026-31834 Umbraco Affected by Vertical Privilege Escalation via Missing Authorization Checks

🗓️ 10 Mar 2026 21:53:49Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 27 Views

Umbraco backoffice users may escalate privileges by user groups due to missing authorization checks; fixed in 16.5.1 and 17.2.2.

Related
Affected
Refs
[
  {
    "vendor": "umbraco",
    "product": "Umbraco-CMS",
    "versions": [
      {
        "version": ">= 15.3.1, < 16.5.1",
        "status": "affected"
      },
      {
        "version": ">= 17.0.0, < 17.2.1",
        "status": "affected"
      }
    ]
  }
]

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