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EUVD-2026-39974

🗓️ 28 Jun 2026 01:32:56Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 6 Views

MyBB 1.8.40 lets limited Admins assign Administrators due to unrestricted verify_usergroup.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-58054
28 Jun 202601:32
attackerkb
Circl
CVE-2026-58054
28 Jun 202605:25
circl
CVE
CVE-2026-58054
28 Jun 202601:32
cve
Cvelist
CVE-2026-58054 MyBB - Privilege Escalation from Limited ACP User Management to Administrator
28 Jun 202601:32
cvelist
NVD
CVE-2026-58054
28 Jun 202602:16
nvd
Positive Technologies
PT-2026-53086
28 Jun 202600:00
ptsecurity
[
  {
    "enisaIdVendor": [
      {
        "id": "5cdfe65a-9ce2-3b56-9829-8e6b47066ce5",
        "vendor": {
          "name": "MyBB"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "9142820f-2b6f-3f41-ae2f-77310a1b9f2b",
        "product": {
          "name": "MyBB",
          "vendor": {
            "name": "MyBB"
          }
        },
        "product_version": "0 ≤1.8.40"
      }
    ]
  }
]

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