---
cve: "CVE-2026-84795"
severity: "CRITICAL"
cvss: 9.2
epss: "0.3%"
vendor: "craftcms"
kev: false
exploited: false
published: "2026-09-02 11:11:11"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-23T07:19:19+02:00"
---

# CVE-2026-84795

> 9.2 CRITICAL · 🧪 PoC

## Beschreibung

Craft CMS before 5.10.11 fails to validate the admin flag during user registration, allowing it to persist from deactivated admin accounts. Attackers can register with a deactivated admin's email address to inherit administrator privileges when public registration and disabled email verification are configured.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 9dece66d9d35f9f2615f5f2107c98d2334c71cfc (Commit)

## Referenzen

- <https://github.com/craftcms/cms/security/advisories/GHSA-242m-9wq7-vhwq>
- <https://www.vulncheck.com/advisories/craft-cms-before-5.10.11-authentication-bypass-via-admin-flag-inheritance>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-84795) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_