The plugin does not escape some URLs before outputting them back in attributes, leading to Reflected Cross-Site Scripting
When the plugin displays a performance notice: https://example.com/wp-admin/plugins.php?"><script>alert(/XSS/)</script>
2022-06-29 (about 7 months ago)
2022-06-29 (about 7 months ago)
2022-06-29 (about 7 months ago)