{"schemaVersion":3,"id":"CVE-2026-66666","aliases":["UBUNTU-CVE-2026-66666","DEBIAN-CVE-2026-66666"],"status":"published","duplicateOf":null,"title":null,"description":"Insertion of Sensitive Information Into Sent Data vulnerability in Automattic WordPress allows Retrieve Embedded Sensitive Data.\n\nThis issue affects WordPress: from 7.1 through 7.1.2, from 7.0 through 7.0.6, from 6.9 through 6.9.9, from 6.8 through 6.8.10, from 6.7 through 6.7.9, and from 6.6 through 6.6.9.","dates":{"published":"2026-10-06T17:48:37.371Z","modified":"2026-10-06T20:05:54.337Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.9,"severity":"medium","version":"4.0","versionLabel":"v4.0","source":"CVE.org","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":6.9,"severity":"medium","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Ubuntu","score":6.9,"severity":"medium","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"OSV · 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of Sensitive Information Into Sent Data","description":"The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/201.html"}],"affected":[{"vendor":"automattic","product":"wordpress","name":"WordPress","label":"wordpress","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 7.1, ≤ 7.1.2","noFixRecorded":false,"fixedIn":null},{"text":"≥ 7.0, ≤ 7.0.6","noFixRecorded":false,"fixedIn":null},{"text":"≥ 6.9, ≤ 6.9.9","noFixRecorded":false,"fixedIn":null},{"text":"≥ 6.8, ≤ 6.8.10","noFixRecorded":false,"fixedIn":null},{"text":"≥ 6.7, ≤ 6.7.9","noFixRecorded":false,"fixedIn":null},{"text":"≥ 6.6, ≤ 6.6.9","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 7.1, ≤ 7.1.2 | ≥ 7.0, ≤ 7.0.6 | ≥ 6.9, ≤ 6.9.9 | ≥ 6.8, ≤ 6.8.10 | ≥ 6.7, ≤ 6.7.9 | ≥ 6.6, ≤ 6.6.9","eol":null,"hubHref":"/vendor/automattic/wordpress"},{"vendor":"debian","product":"wordpress","name":"wordpress","label":"wordpress","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/wordpress","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 7.1.3+dfsg1-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions (No fix recorded) | < 7.1.3+dfsg1-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"wordpress","name":"wordpress","label":"wordpress","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/wordpress","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"wordpress","product":"wordpress","name":"WordPress","label":"wordpress","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 4.7.0, ≤ 4.7.37 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 4.8.0, ≤ 4.8.32 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 4.9.0, ≤ 4.9.33 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 5.0.0, ≤ 5.0.29 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 5.1.0, ≤ 5.1.26 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 5.2.0, ≤ 5.2.28 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 5.3.0, ≤ 5.3.25 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 5.4.0, ≤ 5.4.23 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 5.5.0, ≤ 5.5.22 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 5.6.0, ≤ 5.6.21 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 5.7.0, ≤ 5.7.19 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 5.8.0, ≤ 5.8.17 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 5.9.0, ≤ 5.9.18 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 6.0.0, ≤ 6.0.16 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 6.1.0, ≤ 6.1.14 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 6.2.0, ≤ 6.2.13 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 6.3.0, ≤ 6.3.12 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 6.4.0, ≤ 6.4.12 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 6.5.0, ≤ 6.5.12 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 6.6.0, ≤ 6.6.9 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 6.7.0, ≤ 6.7.9 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 6.8.0, ≤ 6.8.10 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 6.9.0, ≤ 6.9.9 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 7.0.0, ≤ 7.0.6 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"},{"text":"≥ 7.1.0, ≤ 7.1.2 (fixed in 4.7.38)","noFixRecorded":false,"fixedIn":"4.7.38"}],"versionsText":"≥ 4.7.0, ≤ 4.7.37 (fixed in 4.7.38) | ≥ 4.8.0, ≤ 4.8.32 (fixed in 4.7.38) | ≥ 4.9.0, ≤ 4.9.33 (fixed in 4.7.38) | ≥ 5.0.0, ≤ 5.0.29 (fixed in 4.7.38) | ≥ 5.1.0, ≤ 5.1.26 (fixed in 4.7.38) | ≥ 5.2.0, ≤ 5.2.28 (fixed in 4.7.38) | ≥ 5.3.0, ≤ 5.3.25 (fixed in 4.7.38) | ≥ 5.4.0, ≤ 5.4.23 (fixed in 4.7.38) | ≥ 5.5.0, ≤ 5.5.22 (fixed in 4.7.38) | ≥ 5.6.0, ≤ 5.6.21 (fixed in 4.7.38) | ≥ 5.7.0, ≤ 5.7.19 (fixed in 4.7.38) | ≥ 5.8.0, ≤ 5.8.17 (fixed in 4.7.38) | ≥ 5.9.0, ≤ 5.9.18 (fixed in 4.7.38) | ≥ 6.0.0, ≤ 6.0.16 (fixed in 4.7.38) | ≥ 6.1.0, ≤ 6.1.14 (fixed in 4.7.38) | ≥ 6.2.0, ≤ 6.2.13 (fixed in 4.7.38) | ≥ 6.3.0, ≤ 6.3.12 (fixed in 4.7.38) | ≥ 6.4.0, ≤ 6.4.12 (fixed in 4.7.38) | ≥ 6.5.0, ≤ 6.5.12 (fixed in 4.7.38) | ≥ 6.6.0, ≤ 6.6.9 (fixed in 4.7.38) | ≥ 6.7.0, ≤ 6.7.9 (fixed in 4.7.38) | ≥ 6.8.0, ≤ 6.8.10 (fixed in 4.7.38) | ≥ 6.9.0, ≤ 6.9.9 (fixed in 4.7.38) | ≥ 7.0.0, ≤ 7.0.6 (fixed in 4.7.38) | ≥ 7.1.0, ≤ 7.1.2 (fixed in 4.7.38)","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"wordpress","label":"WordPress","category":"server-app"}},"hubHref":null}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://patchstack.com/database/wordpress/wordpress/wordpress/vulnerability/wordpress-wordpress-wordpress-7-1-2-sensitive-data-exposure-vulnerability?_s_id=cve","label":"patchstack.com/database/…","hostname":"patchstack.com","tags":["VDB Entry"]},{"url":"https://wordpress.org/news/2026/10/wordpress-7-1-3-maintenance-and-security-release/","label":"wordpress.org/news/2026/10/wordpress-7-1-3-maintenance-and-security-release/","hostname":"wordpress.org","tags":["Release 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Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-06T17:48:37.371Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-06T20:05:54.337Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":28,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T20:39:31.547Z","stale":false,"partial":false}}