{"id":"CVE-2026-77788","state":"PUBLISHED","title":"Rank Math SEO < 1.0.277 - Author+ Arbitrary Post and User Metadata Overwrite via updateSchemas","description":"The Rank Math SEO  WordPress plugin before 1.0.277 does not verify that the metadata row being updated belongs to the object the user was authorised against, allowing users with the Author role and above to overwrite arbitrary post and user metadata, including that belonging to higher-privileged users.","publishedAt":"2026-09-02T06:00:19.809Z","updatedAt":"2026-09-02T10:45:56.783Z","severity":{"score":4.9,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N","source":"CISA-ADP"},"assigner":"WPScan","products":["Unknown Rank Math SEO"],"affected":[{"vendor":"Unknown","product":"Rank Math SEO","defaultStatus":"unaffected","versions":[{"version":"1.0.48","status":"affected","lessThan":"1.0.277","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/c02511a0-9c8b-44cd-b25f-e95cf5f9fef3/"],"weaknesses":["CWE-639"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/77xxx/CVE-2026-77788.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-77788","state":"PUBLISHED","datePublished":"2026-09-02T06:00:19.809Z","dateUpdated":"2026-09-02T10:45:56.783Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-08-21T12:06:34.124Z"},"containers":{"cna":{"title":"Rank Math SEO < 1.0.277 - Author+ Arbitrary Post and User Metadata Overwrite via updateSchemas","descriptions":[{"lang":"en","value":"The Rank Math SEO  WordPress plugin before 1.0.277 does not verify that the metadata row being updated belongs to the object the user was authorised against, allowing users with the Author role and above to overwrite arbitrary post and user metadata, including that belonging to higher-privileged users."}],"affected":[{"vendor":"Unknown","product":"Rank Math SEO","defaultStatus":"unaffected","versions":[{"version":"1.0.48","status":"affected","lessThan":"1.0.277","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/c02511a0-9c8b-44cd-b25f-e95cf5f9fef3/","tags":["exploit","vdb-entry","technical-description"]}],"problemTypes":[{"descriptions":[{"description":"CWE-639 Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-09-02T06:00:19.809Z"},"credits":[{"lang":"en","value":"Usama Arshad","type":"finder"},{"lang":"en","value":"WPScan","type":"coordinator"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"WPScan CVE Generator"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":4.9,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"HIGH","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2026-77788","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-02T10:34:37.605293Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","lang":"en","type":"CWE","description":"CWE-639 Authorization Bypass Through User-Controlled Key"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-02T10:45:56.783Z"}}]}}}