FKIE_CVE-2026-19125

Vulnerability from fkie_nvd - Published: 2026-09-23 22:16 - Updated: 2026-09-24 14:42
Severity
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Address.php#L419
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Login.php#L46
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Login.php#L51
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Plugin.php#L75
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset/3683106/ethpress/trunk/app/Login.php
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/267acbd7-379c-4930-aa85-3071dfcac5a5?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "EthPress \u2013 Web3 Login",
          "vendor": "lynn999",
          "versions": [
            {
              "lessThanOrEqual": "2.3.5",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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": "CVE-2026-19125",
  "lastModified": "2026-09-24T14:42:02.707",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-19125",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-24T13:29:43.842521Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-23T22:16:56.683",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Address.php#L419"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Login.php#L46"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Login.php#L51"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Plugin.php#L75"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset/3683106/ethpress/trunk/app/Login.php"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/267acbd7-379c-4930-aa85-3071dfcac5a5?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    }
  ]
}



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