---
cve: "CVE-2026-19125"
severity: "HIGH"
cvss: 8.1
epss: "26.6%"
vendor: "lynn999"
kev: false
exploited: false
published: "2026-09-23 22:16:56"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-26T05:38:13+02:00"
---

# CVE-2026-19125

> 8.1 HIGH

## Beschreibung

The EthPress – Web3 Login plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 2.3.5. This is due to the verify_login() function in app/Login.php containing a missing return statement in the signature verification failure branch — when Signature::verify2() reports a mismatch, the function only assigns a WP_Error to a local variable and continues executing, causing unconditional fall-through to the login block where Address::log_in() calls wp_set_auth_cookie() regardless of whether the submitted signature is valid. This makes it possible for unauthenticated attackers to log in as any WordPress user who has a linked wallet address — including administrators — by submitting that user's public wallet address alongside an arbitrary well-formed signature, enabling full site takeover.

## 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/267acbd7-379c-4930-aa85-3071dfcac5a5?source=cve>
- <https://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Login.php#L46>
- <https://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Login.php#L51>
- <https://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Plugin.php#L75>
- <https://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Address.php#L419>
- <https://plugins.trac.wordpress.org/changeset/3683106/ethpress/trunk/app/Login.php>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-19125) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_