Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Magic Post Thumbnail allows Reflected XSS.This issue affects Magic Post Thumbnail: from n/a through 5.2.9.
The Generate Images WordPress plugin before 5.2.8 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)