The plugin does not sanitise and escape some of its 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)
1. Navigate to “Settings > SMTP Mailing Queue > Tools” 2. For the “Message” value add the code: ![](1)
3. Refresh page and see XSS.
CPE | Name | Operator | Version |
---|---|---|---|
smtp-mailing-queue | lt | 2.0.1 |