The Newsletter WordPress plugin before 8.85 does not sanitise and escape some of its Form settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).
| Software | From | Fixed in |
|---|---|---|
| thenewsletterplugin / newsletter | - | 8.8.5 |