GHSA-J4CG-29JC-Q96R
Vulnerability from github – Published: 2026-09-24 00:30 – Updated: 2026-09-24 00:30The 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.
{
"affected": [],
"aliases": [
"CVE-2026-19125"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-23T22:16:56Z",
"severity": "HIGH"
},
"details": "The EthPress \u2013 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 \u2014 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 \u2014 including administrators \u2014 by submitting that user\u0027s public wallet address alongside an arbitrary well-formed signature, enabling full site takeover.",
"id": "GHSA-j4cg-29jc-q96r",
"modified": "2026-09-24T00:30:25Z",
"published": "2026-09-24T00:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19125"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Address.php#L419"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Login.php#L46"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Login.php#L51"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Plugin.php#L75"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/3683106/ethpress/trunk/app/Login.php"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/267acbd7-379c-4930-aa85-3071dfcac5a5?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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