{"api_version":"1","generated_at":"2026-10-28T08:01:11+00:00","cve":"CVE-2026-1928","urls":{"html":"https://cve.report/CVE-2026-1928","api":"https://cve.report/api/cve/CVE-2026-1928.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-1928","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-1928"},"summary":{"title":"Rank Math SEO <= 1.0.276 - Authenticated (Contributor+) PHP Object Injection to Remote Code Execution","description":"The Rank Math SEO – AI SEO Tools to Dominate SEO Rankings plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.0.276 via deserialization of untrusted input in the updateMeta REST API endpoint. This makes it possible forauthenticated attackers, with Contributor-level access and above, to inject a PHP Object. The additional presence of a POP chain allows attackers to achieve remote code execution by writing a webshell to the uploads directory.","state":"PUBLISHED","assigner":"Wordfence","published_at":"2026-10-28 04:18:02","updated_at":"2026-10-28 04:18:02"},"problem_types":["CWE-502","CWE-502 CWE-502 Deserialization of Untrusted Data"],"metrics":[{"version":"3.1","source":"security@wordfence.com","type":"Primary","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"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","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"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","version":"3.1"}}],"references":[{"url":"https://plugins.trac.wordpress.org/changeset/3666725/","name":"https://plugins.trac.wordpress.org/changeset/3666725/","refsource":"security@wordfence.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://plugins.trac.wordpress.org/browser/seo-by-rank-math/tags/1.0.263/includes/rest/class-sanitize.php#L110","name":"https://plugins.trac.wordpress.org/browser/seo-by-rank-math/tags/1.0.263/includes/rest/class-sanitize.php#L110","refsource":"security@wordfence.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/cd4395be-7b4c-46b0-be00-7dedc6691f4a?source=cve","name":"https://www.wordfence.com/threat-intel/vulnerabilities/id/cd4395be-7b4c-46b0-be00-7dedc6691f4a?source=cve","refsource":"security@wordfence.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://plugins.trac.wordpress.org/browser/seo-by-rank-math/tags/1.0.263/includes/rest/class-shared.php#L446","name":"https://plugins.trac.wordpress.org/browser/seo-by-rank-math/tags/1.0.263/includes/rest/class-shared.php#L446","refsource":"security@wordfence.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://plugins.trac.wordpress.org/browser/seo-by-rank-math/tags/1.0.263/includes/modules/schema/class-db.php#L66","name":"https://plugins.trac.wordpress.org/browser/seo-by-rank-math/tags/1.0.263/includes/modules/schema/class-db.php#L66","refsource":"security@wordfence.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-1928","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1928","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"rankmath","product":"Rank Math SEO – AI SEO Tools to Dominate SEO Rankings","version":"affected 1.0.276 semver","platforms":[]}],"timeline":[{"source":"CNA","time":"2026-02-04T20:24:58.000Z","lang":"en","value":"Vendor Notified"},{"source":"CNA","time":"2026-10-27T00:00:00.000Z","lang":"en","value":"Disclosed"}],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"moochi","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Rank Math SEO – AI SEO Tools to Dominate SEO Rankings","vendor":"rankmath","versions":[{"lessThanOrEqual":"1.0.276","status":"affected","version":"0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"moochi"}],"descriptions":[{"lang":"en","value":"The Rank Math SEO – AI SEO Tools to Dominate SEO Rankings plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.0.276 via deserialization of untrusted input in the updateMeta REST API endpoint. This makes it possible forauthenticated attackers, with Contributor-level access and above, to inject a PHP Object. The additional presence of a POP chain allows attackers to achieve remote code execution by writing a webshell to the uploads directory."}],"metrics":[{"cvssV3_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","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-502","description":"CWE-502 Deserialization of Untrusted Data","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-28T03:42:54.378Z","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","shortName":"Wordfence"},"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/cd4395be-7b4c-46b0-be00-7dedc6691f4a?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/seo-by-rank-math/tags/1.0.263/includes/rest/class-shared.php#L446"},{"url":"https://plugins.trac.wordpress.org/browser/seo-by-rank-math/tags/1.0.263/includes/modules/schema/class-db.php#L66"},{"url":"https://plugins.trac.wordpress.org/browser/seo-by-rank-math/tags/1.0.263/includes/rest/class-sanitize.php#L110"},{"url":"https://plugins.trac.wordpress.org/changeset/3666725/"}],"timeline":[{"lang":"en","time":"2026-02-04T20:24:58.000Z","value":"Vendor Notified"},{"lang":"en","time":"2026-10-27T00:00:00.000Z","value":"Disclosed"}],"title":"Rank Math SEO <= 1.0.276 - Authenticated (Contributor+) PHP Object Injection to Remote Code Execution"}},"cveMetadata":{"assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","assignerShortName":"Wordfence","cveId":"CVE-2026-1928","datePublished":"2026-10-28T03:42:54.378Z","dateReserved":"2026-02-04T19:57:08.578Z","dateUpdated":"2026-10-28T03:42:54.378Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-28 04:18:02","lastModifiedDate":"2026-10-28 04:18:02","problem_types":["CWE-502","CWE-502 CWE-502 Deserialization of Untrusted Data"],"metrics":{"cvssMetricV31":[{"source":"security@wordfence.com","type":"Primary","cvssData":{"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","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"1928","Ordinal":"1","Title":"Rank Math SEO <= 1.0.276 - Authenticated (Contributor+) PHP Obje","CVE":"CVE-2026-1928","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"1928","Ordinal":"1","NoteData":"The Rank Math SEO – AI SEO Tools to Dominate SEO Rankings plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.0.276 via deserialization of untrusted input in the updateMeta REST API endpoint. This makes it possible forauthenticated attackers, with Contributor-level access and above, to inject a PHP Object. The additional presence of a POP chain allows attackers to achieve remote code execution by writing a webshell to the uploads directory.","Type":"Description","Title":"Rank Math SEO <= 1.0.276 - Authenticated (Contributor+) PHP Obje"}]}}}