{"schema":"threatline.record/2","record":{"id":"CVE-2026-111862","aliases":[],"summary":"Rank Math SEO PRO 3.0.123 - Unauthenticated Embedded Malicious Code","details":"Rank Math SEO PRO for WordPress is affected by a supply-chain compromise in a subset of version 3.0.123 packages downloaded or updated between October 15, 2026 at 20:02 UTC and October 16, 2026 at 07:12 UTC. Rank Math states that the affected plugin files contained malware that could compromise a website if the plugin was activated and directs sites that activated an affected package to treat the website as compromised. The malware may establish persistent access, communicate with rank1cdn[.]com, recreate hidden backdoors on page visits, and expose WordPress credentials, database credentials, API keys, and other secrets accessible to the web server. Rank Math identifies three malicious wp_options keys, hidden PHP backdoors, unauthorized administrator accounts, a fake WordPress core file, PHP-executable .cache files, and a system cron marker as incident indicators. Only packages obtained during the vendor-confirmed window are claimed as affected; version 3.0.123 alone is not sufficient to establish compromise. Rank Math removed the affected files and released version 3.0.124 as the clean replacement.","categories":["Unclassified"],"product":"Rank Math SEO PRO","vendor":"RankMath","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111862","source_modified_at":"2026-10-20T14:10:31.918Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Rank Math SEO PRO","vendor":"RankMath","versions":[{"version":"3.0.123","status":"affected"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":9.8,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00715,"percentile":0.53232,"score_date":"2026-10-23"},"published_at":"2026-10-19T16:35:59.949Z","modified_at":"2026-10-20T14:10:31.918Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-111862","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-20T14:10:31.918Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-111862","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/81cd7a2c-ad0c-4dbc-b5dc-07ec866d5c1f?source=cve"},{"source":"CVE List","url":"https://rankmath.com/kb/pro-3-0-123-security-incident/"},{"source":"CVE List","url":"https://rankmath.com/changelog/"},{"source":"CVE List","url":"https://urlscan.io/result/01a145c2-8dc8-72ff-a65d-21209ca29c4f/"},{"source":"CVE List","url":"https://rdap.verisign.com/com/v1/domain/rank1cdn.com"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"total","assessed_at":"2026-10-20T14:10:17.459613Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-20T14:10:31.918Z","content_hash":"01ffe28618a326dd052ece32e664743ad0d5a431672c976dc31e012402e808f1"}}