CVE-2026-80099

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The vulnerability exists because the plugins bundle the wp-module-data module. In the module, the `authenticate()` method \u2014 registered on the `rest_authentication_errors` filter and therefore evaluated for every unauthenticated REST API request \u2014 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' => '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 (<= 2.5.2), WP Plugin Web (<= 2.3.4), WP Plugin Hostgator (<= 3.1.0), WP Plugin Bluehost (<= 4.17.1). The affected module is vulnerable in versions up to, and including, 2.9.4."}], "title": "Various Newfold Plugins Various Versions - Unauthenticated Authentication Bypass via Bearer Token Validation with Empty Secret", "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/3ee369c0-0d7c-4142-b3ba-a518288647ba?source=cve"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-module-data/trunk/includes/Data.php#L222"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-module-data/trunk/includes/Data.php#L201"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-module-data/trunk/includes/Data.php#L191"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-module-data/trunk/includes/HiiveConnection.php#L406"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-module-data/trunk/includes/Data.php#L69"}, {"url": "https://github.com/newfold-labs/wp-module-data/commit/9d913fd8fa12796c4d9c09081e4aeccfa5cb1301"}, {"url": "https://github.com/newfold-labs/wp-plugin-hostgator/compare/3.2.0...3.2.1"}, {"url": "https://github.com/newfold-labs/wp-plugin-bluehost/compare/4.19.0...4.19.1"}, {"url": "https://github.com/newfold-labs/wp-plugin-web/compare/2.3.5...2.3.6"}, {"url": "https://github.com/newfold-labs/wp-plugin-crazy-domains/compare/2.5.2...2.5.3"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-287 Improper Authentication", "cweId": "CWE-287", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}}], "credits": [{"lang": "en", "type": "finder", "value": "sorin vasile"}], "timeline": [{"time": "2026-09-08T20:12:14.000Z", "lang": "en", "value": "Disclosed"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-09T15:41:26.162294Z", "id": "CVE-2026-80099", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-09T16:02:13.368Z"}}]}}

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The vulnerability exists because the plugins bundle the wp-module-data module. In the module, the `authenticate()` method \u2014 registered on the `rest_authentication_errors` filter and therefore evaluated for every unauthenticated REST API request \u2014 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' => '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 (<= 2.5.2), WP Plugin Web (<= 2.3.4), WP Plugin Hostgator (<= 3.1.0), WP Plugin Bluehost (<= 4.17.1). The affected module is vulnerable in versions up to, and including, 2.9.4."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-287", "description": "CWE-287 Improper Authentication"}]}], "providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-09-09T08:28:22.335Z"}}}, "cveMetadata": {"cveId": "CVE-2026-80099", "state": "PUBLISHED", "dateUpdated": "2026-09-09T16:02:13.368Z", "dateReserved": "2026-08-25T18:44:30.101Z", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "datePublished": "2026-09-09T08:28:22.335Z", "assignerShortName": "Wordfence"}, "dataVersion": "5.2"}

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The vulnerability exists because the plugins bundle the wp-module-data module. In the module, the `authenticate()` method \u2014 registered on the `rest_authentication_errors` filter and therefore evaluated for every unauthenticated REST API request \u2014 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' => '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 (<= 2.5.2), WP Plugin Web (<= 2.3.4), WP Plugin Hostgator (<= 3.1.0), WP Plugin Bluehost (<= 4.17.1). The affected module is vulnerable in versions up to, and including, 2.9.4."}], "id": "CVE-2026-80099", "lastModified": "2026-09-09T17:17:45.587", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "security@wordfence.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-80099", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-09T15:41:26.162294Z", "version": "2.0.3"}}]}, "published": "2026-09-09T09:17:12.157", "references": [{"source": "security@wordfence.com", "url": "https://github.com/newfold-labs/wp-module-data/commit/9d913fd8fa12796c4d9c09081e4aeccfa5cb1301"}, {"source": "security@wordfence.com", "url": "https://github.com/newfold-labs/wp-plugin-bluehost/compare/4.19.0...4.19.1"}, {"source": "security@wordfence.com", "url": "https://github.com/newfold-labs/wp-plugin-crazy-domains/compare/2.5.2...2.5.3"}, {"source": "security@wordfence.com", "url": "https://github.com/newfold-labs/wp-plugin-hostgator/compare/3.2.0...3.2.1"}, {"source": "security@wordfence.com", "url": "https://github.com/newfold-labs/wp-plugin-web/compare/2.3.5...2.3.6"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-module-data/trunk/includes/Data.php#L191"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-module-data/trunk/includes/Data.php#L201"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-module-data/trunk/includes/Data.php#L222"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-module-data/trunk/includes/Data.php#L69"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-module-data/trunk/includes/HiiveConnection.php#L406"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/3ee369c0-0d7c-4142-b3ba-a518288647ba?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.9.7]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "WP Module Data", "source": "cna", "vendor": "Newfold"}, "product": "wp_module_data", "vendor": "newfold"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.19.0]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "WP Plugin Bluehost", "source": "cna", "vendor": "Newfold"}, "product": "wp_plugin_bluehost", "vendor": "newfold"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.5.2]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "WP Plugin Crazy Domains", "source": "cna", "vendor": "Newfold"}, "product": "wp_plugin_crazy_domains", "vendor": "newfold"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.2.0]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "WP Plugin Hostgator", "source": "cna", "vendor": "Newfold"}, "product": "wp_plugin_hostgator", "vendor": "newfold"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.3.5]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "WP Plugin Web", "source": "cna", "vendor": "Newfold"}, "product": "wp_plugin_web", "vendor": "newfold"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": null}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "wordpress", "vendor": "wordpress"}], "created": "2026-09-09T10:15:09.170844+00:00", "updated": "2026-09-25T00:15:14.050480+00:00", "vendors": ["newfold", "newfold$PRODUCT$wp_module_data", "newfold$PRODUCT$wp_plugin_bluehost", "newfold$PRODUCT$wp_plugin_crazy_domains", "newfold$PRODUCT$wp_plugin_hostgator", "newfold$PRODUCT$wp_plugin_web", "wordpress", "wordpress$PRODUCT$wordpress"]}