high8.8
CVE-2026-88824
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, i…
Impact
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 products
| Product | Affected versions |
|---|---|
| Master Blocks WordPress Plugin | before 1.5.0 |
Versions were read from the advisory text. No structured product data has been published for this record yet.