---
cve: "CVE-2026-1779"
severity: "HIGH"
cvss: 8.1
epss: "35%"
vendor: "WPEverest"
kev: false
exploited: false
published: "2026-02-26 03:16:03"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T11:53:26+02:00"
---

# CVE-2026-1779

> 8.1 HIGH

## Beschreibung

The User Registration & Membership plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 5.1.2. This is due to incorrect authentication in the 'register_member' function. This makes it possible for unauthenticated attackers to log in a newly registered user on the site who has the 'urm_user_just_created' user meta set.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Referenzen

- <https://www.wordfence.com/threat-intel/vulnerabilities/id/d99bc021-ba9e-4294-8dd2-c25bc8007d05?source=cve>
- <https://plugins.trac.wordpress.org/browser/user-registration/tags/5.0.4/modules/membership/includes/AJAX.php#L246>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-1779) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_