CVE-2025-23450: AW WooCommerce Kode Pembayaran XSS Flaw

CVE-2025-23450 Overview

CVE-2025-23450 is a Reflected Cross-Site Scripting (XSS) vulnerability affecting the AW WooCommerce Kode Pembayaran WordPress plugin developed by agenwebsite. This vulnerability arises from improper neutralization of user-supplied input during web page generation, allowing attackers to inject malicious scripts that execute in the context of a victim's browser session.

Reflected XSS vulnerabilities occur when an application receives data in an HTTP request and includes that data within the immediate response in an unsafe way. In the case of this WordPress plugin, untrusted input is not properly sanitized before being reflected back to users, enabling attackers to craft malicious URLs that execute arbitrary JavaScript when clicked by authenticated users.

Critical Impact

Attackers can steal session cookies, hijack user accounts, perform unauthorized actions on behalf of victims, and potentially compromise WordPress administrator accounts through social engineering attacks.

Affected Products

• AW WooCommerce Kode Pembayaran plugin version 1.1.4 and earlier
• WordPress installations using the aw-woocommerce-kode-pembayaran plugin
• WooCommerce-enabled sites with the vulnerable payment code plugin active

Discovery Timeline

• 2025-03-03 - CVE-2025-23450 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-23450

Vulnerability Analysis

This vulnerability is classified under CWE-79 (Improper Neutralization of Input During Web Page Generation), which represents one of the most common web application security flaws. The AW WooCommerce Kode Pembayaran plugin fails to properly sanitize, validate, or encode user-controlled input before incorporating it into dynamically generated web pages.

In a Reflected XSS attack scenario, the malicious payload is delivered to the victim through an external channel, typically a crafted URL shared via email, social media, or another website. When the victim clicks the link and visits the vulnerable page, the malicious script executes within their browser with the same privileges as the legitimate application.

For WordPress e-commerce sites, this vulnerability is particularly concerning because successful exploitation could allow attackers to capture WooCommerce customer data, modify payment information, or perform administrative actions if an administrator is targeted.

Root Cause

The root cause of this vulnerability is the lack of proper input validation and output encoding within the AW WooCommerce Kode Pembayaran plugin. WordPress provides built-in sanitization functions such as esc_html(), esc_attr(), wp_kses(), and sanitize_text_field() that should be applied to all user-supplied data before rendering it in HTML contexts. The affected plugin versions fail to implement these security controls adequately, allowing raw user input to be reflected in page output.

Attack Vector

The attack requires user interaction, as the victim must click a malicious link crafted by the attacker. The attack flow typically proceeds as follows:

1. The attacker identifies a vulnerable parameter in the plugin that reflects user input
2. A malicious URL is crafted containing JavaScript payload in the vulnerable parameter
3. The attacker distributes the malicious link via phishing emails or compromised websites
4. When a victim clicks the link, the malicious script executes in their browser
5. The script can steal cookies, capture keystrokes, or perform actions on behalf of the user

For detailed technical analysis, refer to the Patchstack Vulnerability Report.

Detection Methods for CVE-2025-23450

Indicators of Compromise

• Unusual HTTP requests to WordPress endpoints containing JavaScript code or HTML tags in URL parameters
• Server logs showing requests with encoded script tags (%3Cscript%3E) targeting plugin-specific pages
• User reports of unexpected behavior or pop-ups when accessing WooCommerce payment pages
• Evidence of session hijacking or unauthorized administrative actions following suspicious link access

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block XSS payloads in request parameters
• Implement Content Security Policy (CSP) headers to prevent inline script execution
• Monitor HTTP access logs for requests containing suspicious patterns like <script>, javascript:, or onerror=
• Use WordPress security plugins that scan for known vulnerable plugin versions

Monitoring Recommendations

• Enable verbose logging for the WooCommerce plugin ecosystem to capture parameter values in requests
• Configure SIEM alerts for patterns indicative of XSS attacks targeting WordPress installations
• Regularly audit installed WordPress plugins against vulnerability databases like Patchstack and WPScan
• Monitor for anomalous user session behavior that may indicate successful XSS exploitation

How to Mitigate CVE-2025-23450

Immediate Actions Required

• Update the AW WooCommerce Kode Pembayaran plugin to a patched version if available, or deactivate and remove the plugin immediately
• Audit WordPress user sessions and force re-authentication for all users, particularly administrators
• Review server access logs for signs of exploitation attempts targeting the vulnerable plugin
• Implement or verify Web Application Firewall rules are active and configured to block XSS payloads

Patch Information

Organizations using the AW WooCommerce Kode Pembayaran plugin should check for an updated version that addresses this vulnerability. If no patch is available, consider replacing the plugin with an alternative solution that provides similar functionality with proper security controls. Consult the Patchstack Vulnerability Report for the latest remediation guidance.

Workarounds

• Deactivate the AW WooCommerce Kode Pembayaran plugin until a security patch is available
• Implement Content Security Policy headers to mitigate the impact of XSS vulnerabilities
• Deploy a Web Application Firewall with XSS protection rules enabled
• Restrict access to WordPress admin pages using IP allowlisting or VPN requirements

# Add Content Security Policy headers in .htaccess (Apache)
<IfModule mod_headers.c>
    Header set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none';"
    Header set X-XSS-Protection "1; mode=block"
    Header set X-Content-Type-Options "nosniff"
</IfModule>