{"id":"CVE-2026-18391","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-18391","summary":"The WooCommerce Subscriptions WordPress plugin before 9.1.0 does not validate user input before unserializing it on stores with High-Performance Order Storage enabled, leading to a…","details":"The WooCommerce Subscriptions WordPress plugin before 9.1.0 does not validate user input before unserializing it on stores with High-Performance Order Storage enabled, leading to a PHP Object Injection issue which unauthenticated users can escalate to Remote Code Execution via a gadget chain present in the bundled dependencies.","published":"2026-08-12T06:20:14.167","modified":"2026-08-12T06:20:14.167","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://wpscan.com/vulnerability/191f76cf-e5bd-4a37-ac1c-9187cea2aa27/"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T06:20:14.167"}}