{"cve":"CVE-2026-104723","nvd":{"published":"2026-10-10T06:16:38.760","modified":"2026-10-13T13:30:21.620","status":"Deferred","description":"The LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 10.2.1 via deserialization of untrusted input . This makes it possible for authenticated attackers, with custom-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present. This vulnerability is only exploitable during lesson creation when a temporary lesson ID triggers the custom metadata path, and requires the attacker to hold a role with the edit_course capability, such as Instructor, Instructor's Assistant, LMS Manager, or Administrator.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-502"],"references":["https://plugins.trac.wordpress.org/browser/lifterlms/tags/10.2.1/includes/admin/class.llms.admin.builder.php#L1218","https://plugins.trac.wordpress.org/browser/lifterlms/tags/10.2.1/includes/admin/class.llms.admin.builder.php#L1576","https://plugins.trac.wordpress.org/browser/lifterlms/tags/10.2.1/includes/admin/class.llms.admin.builder.php#L458","https://plugins.trac.wordpress.org/browser/lifterlms/tags/10.2.1/includes/admin/class.llms.admin.builder.php#L993","https://plugins.trac.wordpress.org/changeset/3729229/lifterlms/trunk/includes/admin/class.llms.admin.builder.php"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:58:01.639778232+00:00"},"epss":{"cve":"CVE-2026-104723","score":0.00434,"percentile":0.37415,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}