EthPress <= 2.3.5 - Unauthenticated Authentication Bypass

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-19125",
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "dateUpdated": "2026-09-23T21:27:34.233Z",
    "dateReserved": "2026-08-06T15:46:55.338Z",
    "datePublished": "2026-09-23T21:27:34.233Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence",
        "dateUpdated": "2026-09-23T21:27:34.233Z"
      },
      "title": "EthPress <= 2.3.5 - Unauthenticated Authentication Bypass",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "affected": [
        {
          "vendor": "lynn999",
          "product": "EthPress – Web3 Login",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "2.3.5"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-287 Improper Authentication",
              "cweId": "CWE-287",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/267acbd7-379c-4930-aa85-3071dfcac5a5?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Login.php#L46"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Login.php#L51"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Plugin.php#L75"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/ethpress/tags/2.3.5/app/Address.php#L419"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset/3683106/ethpress/trunk/app/Login.php"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "baseScore": 8.1,
            "baseSeverity": "HIGH"
          }
        }
      ],
      "timeline": [
        {
          "time": "2026-09-06T05:01:44.000Z",
          "lang": "en",
          "value": "Vendor Notified"
        },
        {
          "time": "2026-09-23T09:05:24.000Z",
          "lang": "en",
          "value": "Disclosed"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Thatchapol Booranatanit (AliceZz)",
          "type": "finder"
        }
      ]
    }
  }
}