CVE-2026-8952 Firefox更新组件权限提升漏洞

import os # Conceptual PoC for CVE-2026-8952 # This script simulates checking if the update directory is writable, # which is a prerequisite for exploiting the privilege escalation vulnerability. def check_firefox_update_vuln(): # Path to the Firefox update directory (example for Windows) target_path = r"C:\Program Files\Mozilla Firefox\update" print(f"[*] Checking permissions for: {target_path}") if not os.path.exists(target_path): print("[!] Firefox update directory not found.") return # Check if the current user has write access if os.access(target_path, os.W_OK): print("[+] VULNERABLE: Write access detected in update directory.") print("[+] An attacker could potentially exploit the update service for privilege escalation.") else: print("[-] Secure: No write access detected with current privileges.") if __name__ == "__main__": check_firefox_update_vuln()