{"id":"CVE-2026-88824","title":"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 Store…","summary":"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 Store…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-79"],"product":"Master Blocks","affected":["master_blocks >= 1.4.1 < 1.5.0"],"published":"2026-09-19","updated":"2026-09-21","sourceUpdated":"2026-09-21T13:34:57.127","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-88824","references":[{"url":"https://wpscan.com/vulnerability/898fda0a-4d27-4def-ae6f-35bf25a8ae8d/","label":"contact@wpscan.com"}],"tags":["nvd","cve.org"],"epss":0.00276,"epssPercentile":0.20213,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-19T13:12:08.510452Z"},"ingestedAt":"2026-09-19T06:59:13.113Z","slug":"CVE-2026-88824","body":"## Overview\n\nThe 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":207700,"id":"CVE-2026-88824","ts":1789826663642,"field":"cvss","old":null,"new":"8.8"},{"seq":207699,"id":"CVE-2026-88824","ts":1789826663642,"field":"severity","old":"none","new":"high"}]}