{"id":"CVE-2026-80099","aliases":["EUVD-2026-74773","GHSA-x9jw-34gv-v4x8"],"status":"published","title":"Various Newfold Plugins Various Versions - Unauthenticated Authentication Bypass via Bearer Token Validation with Empty Secret","description":"Several Newfold plugins are vulnerable to Authentication Bypass. The vulnerability exists because the plugins bundle the wp-module-data module. In the module, the `authenticate()` method — registered on the `rest_authentication_errors` filter and therefore evaluated for every unauthenticated REST API request — performs an HMAC-style Bearer token comparison that degenerates when `HiiveConnection::get_auth_token()` returns `false`: PHP coerces `strrev(false)` to `strrev('')`, collapsing the secret salt to the publicly known constant `hash('sha256', '') = e3b0c44...`, while all remaining hash inputs (HTTP method, request URL, raw request body, and the `X-Timestamp` header) remain fully attacker-controlled. This makes it possible for unauthenticated attackers to compute a valid Bearer token entirely offline, pass the token equality check, and have `wp_set_current_user()` invoked against the first administrator returned by `get_users(['role' =\u003e 'administrator'])`, granting full administrator-level access and enabling arbitrary REST API operations such as creating new administrator accounts and achieving complete site takeover. Vulnerable versions are WP Plugin Crazy Domains (\u003c= 2.5.2), WP Plugin Web (\u003c= 2.3.4), WP Plugin Hostgator (\u003c= 3.1.0), WP Plugin Bluehost (\u003c= 4.17.1). The affected module is vulnerable in versions up to, and including, 2.9.4.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0291,"percentile":0.87166,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-287"],"published":"2026-09-09T08:28:22Z","modified":"2026-10-28T02:30:57Z","exploits":[{"source":"nuclei","id":"CVE-2026-80099","title":"Newfold WordPress Plugins - Unauthenticated Admin Bypass via Empty HMAC Secret","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-80099.yaml"},{"source":"pocgithub","id":"Wayang1337/CVE-2026-80099","title":"Wayang1337/CVE-2026-80099","date":"2026-09-12","url":"https://github.com/Wayang1337/CVE-2026-80099"}],"products":[{"vendor":"newfold","product":"wp module data"},{"vendor":"newfold","product":"wp plugin bluehost"},{"vendor":"newfold","product":"wp plugin crazy domains"},{"vendor":"newfold","product":"wp plugin hostgator"},{"vendor":"newfold","product":"wp plugin web"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/3ee369c0-0d7c-4142-b3ba-a518288647ba?source=cve","tags":["web"]},{"url":"https://plugins.trac.wordpress.org/browser/wp-module-data/trunk/includes/Data.php#L222","tags":["web"]},{"url":"https://plugins.trac.wordpress.org/browser/wp-module-data/trunk/includes/Data.php#L201","tags":["web"]},{"url":"https://plugins.trac.wordpress.org/browser/wp-module-data/trunk/includes/Data.php#L191","tags":["web"]},{"url":"https://plugins.trac.wordpress.org/browser/wp-module-data/trunk/includes/HiiveConnection.php#L406","tags":["web"]},{"url":"https://plugins.trac.wordpress.org/browser/wp-module-data/trunk/includes/Data.php#L69","tags":["web"]},{"url":"https://github.com/newfold-labs/wp-module-data/commit/9d913fd8fa12796c4d9c09081e4aeccfa5cb1301","tags":["fix"]},{"url":"https://github.com/newfold-labs/wp-plugin-hostgator/compare/3.2.0...3.2.1","tags":["web"]},{"url":"https://github.com/newfold-labs/wp-plugin-bluehost/compare/4.19.0...4.19.1","tags":["web"]},{"url":"https://github.com/newfold-labs/wp-plugin-web/compare/2.3.5...2.3.6","tags":["web"]},{"url":"https://github.com/newfold-labs/wp-plugin-crazy-domains/compare/2.5.2...2.5.3","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80099","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-x9jw-34gv-v4x8"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80099.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-80099","title":"Various Newfold Plugins Various Versions - Unauthenticated Authentication Bypass via Bearer Token Validation with Empty Secret","description":"Several Newfold plugins are vulnerable to Authentication Bypass. The vulnerability exists because the plugins bundle the wp-module-data module. In the module, the `authenticate()` method — registered on the `rest_authentication_errors` filter and therefore evaluated for every unauthenticated REST API request — performs an HMAC-style Bearer token comparison that degenerates when `HiiveConnection::get_auth_token()` returns `false`: PHP coerces `strrev(false)` to `strrev('')`, collapsing the secret salt to the publicly known constant `hash('sha256', '') = e3b0c44...`, while all remaining hash inputs (HTTP method, request URL, raw request body, and the `X-Timestamp` header) remain fully attacker-controlled. This makes it possible for unauthenticated attackers to compute a valid Bearer token entirely offline, pass the token equality check, and have `wp_set_current_user()` invoked against the first administrator returned by `get_users(['role' =\u003e 'administrator'])`, granting full administrator-level access and enabling arbitrary REST API operations such as creating new administrator accounts and achieving complete site takeover. Vulnerable versions are WP Plugin Crazy Domains (\u003c= 2.5.2), WP Plugin Web (\u003c= 2.3.4), WP Plugin Hostgator (\u003c= 3.1.0), WP Plugin Bluehost (\u003c= 4.17.1). The affected module is vulnerable in versions up to, and including, 2.9.4.","status":"published","published":"2026-09-09T08:28:22.335Z","modified":"2026-09-09T16:02:13.368Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T13:45:25.313702Z"}],"euvd":[{"id":"EUVD-2026-74773","description":"Several Newfold plugins are vulnerable to Authentication Bypass. The vulnerability exists because the plugins bundle the wp-module-data module. In the module, the `authenticate()` method — registered on the `rest_authentication_errors` filter and therefore evaluated for every unauthenticated REST API request — performs an HMAC-style Bearer token comparison that degenerates when `HiiveConnection::get_auth_token()` returns `false`: PHP coerces `strrev(false)` to `strrev('')`, collapsing the secret salt to the publicly known constant `hash('sha256', '') = e3b0c44...`, while all remaining hash inputs (HTTP method, request URL, raw request body, and the `X-Timestamp` header) remain fully attacker-controlled. This makes it possible for unauthenticated attackers to compute a valid Bearer token entirely offline, pass the token equality check, and have `wp_set_current_user()` invoked against the first administrator returned by `get_users(['role' =\u003e 'administrator'])`, granting full administrator-level access and enabling arbitrary REST API operations such as creating new administrator accounts and achieving complete site takeover. Vulnerable versions are WP Plugin Crazy Domains (\u003c= 2.5.2), WP Plugin Web (\u003c= 2.3.4), WP Plugin Hostgator (\u003c= 3.1.0), WP Plugin Bluehost (\u003c= 4.17.1). The affected module is vulnerable in versions up to, and including, 2.9.4.","status":"published","published":"2026-09-09T08:28:22Z","modified":"2026-09-09T16:02:13Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T17:28:26.437971Z"}],"ghsa":[{"id":"GHSA-x9jw-34gv-v4x8","title":"Several Newfold plugins are vulnerable to Authentication Bypass. The vulnerability exists because...","description":"Several Newfold plugins are vulnerable to Authentication Bypass. The vulnerability exists because the plugins bundle the wp-module-data module. In the module, the `authenticate()` method — registered on the `rest_authentication_errors` filter and therefore evaluated for every unauthenticated REST API request — performs an HMAC-style Bearer token comparison that degenerates when `HiiveConnection::get_auth_token()` returns `false`: PHP coerces `strrev(false)` to `strrev('')`, collapsing the secret salt to the publicly known constant `hash('sha256', '') = e3b0c44...`, while all remaining hash inputs (HTTP method, request URL, raw request body, and the `X-Timestamp` header) remain fully attacker-controlled. This makes it possible for unauthenticated attackers to compute a valid Bearer token entirely offline, pass the token equality check, and have `wp_set_current_user()` invoked against the first administrator returned by `get_users(['role' =\u003e 'administrator'])`, granting full administrator-level access and enabling arbitrary REST API operations such as creating new administrator accounts and achieving complete site takeover. Vulnerable versions are WP Plugin Crazy Domains (\u003c= 2.5.2), WP Plugin Web (\u003c= 2.3.4), WP Plugin Hostgator (\u003c= 3.1.0), WP Plugin Bluehost (\u003c= 4.17.1). The affected module is vulnerable in versions up to, and including, 2.9.4.","status":"published","published":"2026-09-09T09:33:00Z","modified":"2026-09-09T09:33:07Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:11:38.096751Z"}],"nvd":[{"id":"CVE-2026-80099","description":"Several Newfold plugins are vulnerable to Authentication Bypass. The vulnerability exists because the plugins bundle the wp-module-data module. In the module, the `authenticate()` method — registered on the `rest_authentication_errors` filter and therefore evaluated for every unauthenticated REST API request — performs an HMAC-style Bearer token comparison that degenerates when `HiiveConnection::get_auth_token()` returns `false`: PHP coerces `strrev(false)` to `strrev('')`, collapsing the secret salt to the publicly known constant `hash('sha256', '') = e3b0c44...`, while all remaining hash inputs (HTTP method, request URL, raw request body, and the `X-Timestamp` header) remain fully attacker-controlled. This makes it possible for unauthenticated attackers to compute a valid Bearer token entirely offline, pass the token equality check, and have `wp_set_current_user()` invoked against the first administrator returned by `get_users(['role' =\u003e 'administrator'])`, granting full administrator-level access and enabling arbitrary REST API operations such as creating new administrator accounts and achieving complete site takeover. Vulnerable versions are WP Plugin Crazy Domains (\u003c= 2.5.2), WP Plugin Web (\u003c= 2.3.4), WP Plugin Hostgator (\u003c= 3.1.0), WP Plugin Bluehost (\u003c= 4.17.1). The affected module is vulnerable in versions up to, and including, 2.9.4.","status":"published","published":"2026-09-09T09:17:12.157Z","modified":"2026-09-09T17:17:45.587Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:12:45.93749Z"}],"osv":[{"id":"CVE-2026-80099","title":"Various Newfold Plugins Various Versions - Unauthenticated Authentication Bypass via Bearer Token Validation with Empty Secret","description":"Several Newfold plugins are vulnerable to Authentication Bypass. The vulnerability exists because the plugins bundle the wp-module-data module. In the module, the `authenticate()` method — registered on the `rest_authentication_errors` filter and therefore evaluated for every unauthenticated REST API request — performs an HMAC-style Bearer token comparison that degenerates when `HiiveConnection::get_auth_token()` returns `false`: PHP coerces `strrev(false)` to `strrev('')`, collapsing the secret salt to the publicly known constant `hash('sha256', '') = e3b0c44...`, while all remaining hash inputs (HTTP method, request URL, raw request body, and the `X-Timestamp` header) remain fully attacker-controlled. This makes it possible for unauthenticated attackers to compute a valid Bearer token entirely offline, pass the token equality check, and have `wp_set_current_user()` invoked against the first administrator returned by `get_users(['role' =\u003e 'administrator'])`, granting full administrator-level access and enabling arbitrary REST API operations such as creating new administrator accounts and achieving complete site takeover. Vulnerable versions are WP Plugin Crazy Domains (\u003c= 2.5.2), WP Plugin Web (\u003c= 2.3.4), WP Plugin Hostgator (\u003c= 3.1.0), WP Plugin Bluehost (\u003c= 4.17.1). The affected module is vulnerable in versions up to, and including, 2.9.4.","status":"published","published":"2026-09-09T08:28:22.335Z","modified":"2026-10-28T02:30:57.617223454Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:45:17.44708Z"}]}}