---
cve: "CVE-2026-16259"
severity: "CRITICAL"
cvss: 9.8
epss: "28%"
vendor: "Unknown"
kev: false
exploited: false
published: "2026-08-29 06:17:00"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T06:25:05+02:00"
---

# CVE-2026-16259

> 9.8 CRITICAL

## Beschreibung

The Uix UserCenter WordPress plugin through 1.0.3 does not verify that the account being modified through an unauthenticated profile-update action belongs to the requester, and it authenticates that action with a token whose signing key is hardcoded and identical across every install, allowing unauthenticated attackers to forge a token for any user, overwrite an administrator's email and password, and take over the account.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| 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://wpscan.com/vulnerability/e551128c-c9b1-4e6a-a2aa-92830b7a4887/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-16259) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_