{"schema":"threatline.record/2","record":{"id":"CVE-2026-104736","aliases":[],"summary":"LearnPress <= 4.4.10 - Unauthenticated PHP Object Injection via 'checkout-email' Parameter","details":"The LearnPress plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 4.4.10 via deserialization of untrusted input from the 'checkout-email' request parameter during the checkout AJAX action. The value is passed through sanitize_text_field(), which does not strip serialized object syntax, then stored in the LearnPress session table and later fed to LP_Helper::maybe_unserialize() → unserialize() (without an allowed_classes restriction) by LP_Session_Handler::get() on subsequent requests. This makes it possible for unauthenticated attackers to inject a PHP Object.","categories":["Applications & CMS"],"product":"LearnPress – WordPress LMS Plugin for Create and Sell Online Courses","vendor":"thimpress","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-104736","source_modified_at":"2026-10-18T11:22:46.937Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"LearnPress – WordPress LMS Plugin for Create and Sell Online Courses","vendor":"thimpress","versions":[{"version":"0","status":"affected","lessThanOrEqual":"4.4.10","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":9.8,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00438,"percentile":0.37016,"score_date":"2026-10-23"},"published_at":"2026-10-17T03:43:28.046Z","modified_at":"2026-10-18T11:22:46.937Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-104736","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-18T11:22:46.937Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-104736","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/3e28e008-0ec1-4262-9ac0-6170cf8b8bdf?source=cve"},{"source":"CVE List","url":"https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.9.1/inc/class-lp-session-handler.php#L373"},{"source":"CVE List","url":"https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.9.1/inc/class-lp-checkout.php#L377"},{"source":"CVE List","url":"https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.9.1/inc/class-lp-checkout.php#L523"},{"source":"CVE List","url":"https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.9.1/inc/class-lp-ajax.php#L21"},{"source":"CVE List","url":"https://plugins.trac.wordpress.org/changeset?reponame=&old=3750024%40learnpress&new=3750024%40learnpress"}],"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":"2026-10-18T11:08:40.232447Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-18T11:22:46.937Z","content_hash":"28785f3c203a810c8e9570b7c0546cd43f6e7be0bed3075e68d80fedaaad7877"}}