{"id":"CVE-2026-88824","published":"2026-09-19T07:16:33.273","lastModified":"2026-09-21T13:34:57.127","description":"The Master Blocks  WordPress plugin before 1.5.0 does not have authorisation on one of its REST routes, allowing unauthenticated users to update its settings, including a value that is output unescaped in the admin area, leading to Stored XSS that executes in the session of any administrator visiting a wp-admin page.","cvssScore":8.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://wpscan.com/vulnerability/898fda0a-4d27-4def-ae6f-35bf25a8ae8d/","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"The flaw allows unauthenticated users to update settings in the Master Blocks WordPress plugin, leading to Stored XSS that can be executed in the session of any administrator visiting a wp-admin page.","exploitability":"Exploitation is relatively easy as it requires no authentication and can be performed by any unauthenticated user.","blast_radius":"If exploited, the impact is high as it can lead to arbitrary JavaScript execution in the context of an administrator, potentially leading to full compromise of the admin session.","remediation":"Upgrade to version 1.5.0 or later of the Master Blocks WordPress plugin.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["xss","wp-plugin","unauth","web"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-09-29T09:20:17.582Z"}}