{"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": "2026-08-22T23:27:19.610Z"}, "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"}]}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "PPWP \u2013 Password Protect Pages", "vendor": "buildwps", "versions": [{"lessThanOrEqual": "1.9.18", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "[email protected]"}], "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."}], "id": "CVE-2026-0551", "lastModified": "2026-08-23T00:16:49.777", "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": "[email protected]", "type": "Primary"}]}, "published": "2026-08-23T00:16:49.777", "references": [{"source": "[email protected]", "url": "https://plugins.trac.wordpress.org/browser/password-protect-page/trunk/includes/services/class-ppw-passwords.php#L699"}, {"source": "[email protected]", "url": "https://plugins.trac.wordpress.org/changeset/3567221/password-protect-page"}, {"source": "[email protected]", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b8f53282-740e-4ac3-a2e1-7a97893e3355?source=cve"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "[email protected]", "type": "Primary"}]}

{}

{"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"]}