{"id":"CVE-2026-88824","state":"PUBLISHED","title":"Master Blocks 1.4.1 - 1.4.1.4 - Unauthenticated Stored XSS via White Label Settings","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.","publishedAt":"2026-09-19T06:00:16.738Z","updatedAt":"2026-09-19T13:18:55.698Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"WPScan","products":["Unknown Master Blocks"],"affected":[{"vendor":"Unknown","product":"Master Blocks","defaultStatus":"unaffected","versions":[{"version":"1.4.1","status":"affected","lessThan":"1.5.0","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/898fda0a-4d27-4def-ae6f-35bf25a8ae8d/"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/88xxx/CVE-2026-88824.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-88824","state":"PUBLISHED","datePublished":"2026-09-19T06:00:16.738Z","dateUpdated":"2026-09-19T13:18:55.698Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-09-10T09:28:11.081Z"},"containers":{"cna":{"title":"Master Blocks 1.4.1 - 1.4.1.4 - Unauthenticated Stored XSS via White Label Settings","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Unknown","product":"Master Blocks","defaultStatus":"unaffected","versions":[{"version":"1.4.1","status":"affected","lessThan":"1.5.0","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/898fda0a-4d27-4def-ae6f-35bf25a8ae8d/","tags":["exploit","vdb-entry","technical-description"]}],"problemTypes":[{"descriptions":[{"description":"CWE-79 Cross-Site Scripting (XSS)","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-09-19T06:00:16.738Z"},"credits":[{"lang":"en","value":"Enrico Marcolini - Claudio Marchesini - Dottor Marc","type":"finder"},{"lang":"en","value":"WPScan","type":"coordinator"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"WPScan CVE Generator"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":8.8,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-09-19T13:12:08.510452Z","id":"CVE-2026-88824","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","type":"CWE","lang":"en","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-19T13:18:55.698Z"}}]}}}