CVE-2026-0551

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-0551", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "state": "PUBLISHED", "assignerShortName": "Wordfence", "dateReserved": "2026-01-01T18:00:58.280Z", "datePublished": "2026-08-22T23:27:19.610Z", "dateUpdated": "2026-08-25T19:24:03.026Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-08-22T23:27:19.610Z"}, "affected": [{"vendor": "buildwps", "product": "PPWP \u2013 Password Protect Pages", "versions": [{"version": "0", "status": "affected", "lessThanOrEqual": "1.9.18", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The PPWP \u2013 Password Protect Pages plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.9.18 via deserialization of untrusted input from the 'post_protection_roles' vulnerable parameter. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present."}], "title": "PPWP \u2013 Password Protect Pages <= 1.9.18 - Authenticated (Contributor+) PHP Object Injection via post_protection_roles", "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b8f53282-740e-4ac3-a2e1-7a97893e3355?source=cve"}, {"url": "https://plugins.trac.wordpress.org/browser/password-protect-page/trunk/includes/services/class-ppw-passwords.php#L699"}, {"url": "https://plugins.trac.wordpress.org/changeset/3567221/password-protect-page"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-502 Deserialization of Untrusted Data", "cweId": "CWE-502", "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": "Webbernaut"}], "timeline": [{"time": "2026-01-01T18:16:39.000Z", "lang": "en", "value": "Vendor Notified"}, {"time": "2026-08-22T10:47:09.000Z", "lang": "en", "value": "Disclosed"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-25T19:09:02.672947Z", "id": "CVE-2026-0551", "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": "2026-08-25T19:24:03.026Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-0551", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-08-25T19:09:02.672947Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-25T19:09:03.807Z"}}], "cna": {"title": "PPWP \u2013 Password Protect Pages <= 1.9.18 - Authenticated (Contributor+) PHP Object Injection via post_protection_roles", "credits": [{"lang": "en", "type": "finder", "value": "Webbernaut"}], "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 8.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}}], "affected": [{"vendor": "buildwps", "product": "PPWP \u2013 Password Protect Pages", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "1.9.18"}], "defaultStatus": "unaffected"}], "timeline": [{"lang": "en", "time": "2026-01-01T18:16:39.000Z", "value": "Vendor Notified"}, {"lang": "en", "time": "2026-08-22T10:47:09.000Z", "value": "Disclosed"}], "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b8f53282-740e-4ac3-a2e1-7a97893e3355?source=cve"}, {"url": "https://plugins.trac.wordpress.org/browser/password-protect-page/trunk/includes/services/class-ppw-passwords.php#L699"}, {"url": "https://plugins.trac.wordpress.org/changeset/3567221/password-protect-page"}], "descriptions": [{"lang": "en", "value": "The PPWP \u2013 Password Protect Pages plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.9.18 via deserialization of untrusted input from the 'post_protection_roles' vulnerable parameter. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-502", "description": "CWE-502 Deserialization of Untrusted Data"}]}], "providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-08-22T23:27:19.610Z"}}}, "cveMetadata": {"cveId": "CVE-2026-0551", "state": "PUBLISHED", "dateUpdated": "2026-08-25T19:24:03.026Z", "dateReserved": "2026-01-01T18:00:58.280Z", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "datePublished": "2026-08-22T23:27:19.610Z", "assignerShortName": "Wordfence"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "PPWP \u2013 Password Protect Pages", "vendor": "buildwps", "versions": [{"lessThanOrEqual": "1.9.18", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The PPWP \u2013 Password Protect Pages plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.9.18 via deserialization of untrusted input from the 'post_protection_roles' vulnerable parameter. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present."}, {"lang": "es", "value": "El plugin PPWP - Password Protect Pages para WordPress es vulnerable a la inyecci\u00f3n de objetos PHP en todas las versiones hasta la 1.9.18, inclusive, a trav\u00e9s de la deserializaci\u00f3n de entrada no confiable del par\u00e1metro vulnerable 'post_protection_roles'. Esto hace posible que atacantes autenticados, con acceso de nivel Colaborador y superior, inyecten un objeto PHP. No se conoce ninguna cadena POP presente en el software vulnerable, lo que significa que esta vulnerabilidad no tiene impacto a menos que otro plugin o tema que contenga una cadena POP est\u00e9 instalado en el sitio. Si una cadena POP est\u00e1 presente a trav\u00e9s de un plugin o tema adicional instalado en el sistema objetivo, puede permitir al atacante realizar acciones como eliminar archivos arbitrarios, recuperar datos sensibles o ejecutar c\u00f3digo dependiendo de la cadena POP presente."}], "id": "CVE-2026-0551", "lastModified": "2026-10-12T16:10:00.220", "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-2026-0551", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-25T19:09:02.672947Z", "version": "2.0.3"}}]}, "published": "2026-08-23T00:16:49.777", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/password-protect-page/trunk/includes/services/class-ppw-passwords.php#L699"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/changeset/3567221/password-protect-page"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b8f53282-740e-4ac3-a2e1-7a97893e3355?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.9.18]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "PPWP \u2013 Password Protect Pages", "source": "cna", "vendor": "buildwps"}, "product": "ppwp_\u2013_password_protect_pages", "vendor": "buildwps"}, {"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": "2026-08-23T00:30:17.626359+00:00", "updated": "2026-08-23T01:00:13.116164+00:00", "vendors": ["buildwps", "buildwps$PRODUCT$ppwp_\u2013_password_protect_pages", "wordpress", "wordpress$PRODUCT$wordpress"]}