The WP Google Map WordPress plugin before 1.7.7 did not sanitise or escape the Map Title before outputting them in the page, leading to a Stored Cross-Site Scripting issue by high privilege users, even when the unfiltered_html capability is disallowed
https://wpscan.com/vulnerability/f95c3a48-5228-4047-9b92-de985741d157
https://drive.google.com/file/d/1CbBlsf0Vt1QLBTnSC-vod2UCMm_NnZ2p/view?usp=sharing