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.

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History

Sat, 19 Sep 2026 06:30:00 +0000

Type Values Removed Values Added
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.
Title Master Blocks 1.4.1 - 1.4.1.4 - Unauthenticated Stored XSS via White Label Settings
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cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-09-19T06:00:16.738Z

Reserved: 2026-09-10T09:28:11.081Z

Link: CVE-2026-88824

cve-icon Vulnrichment

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cve-icon NVD

Status : Received

Published: 2026-09-19T07:16:33.273

Modified: 2026-09-19T07:16:33.273

Link: CVE-2026-88824

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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