CVE-2024-56233: KinTPV WooConnect Stored XSS Vulnerability

CVE-2024-56233 Overview

CVE-2024-56233 is a stored Cross-Site Scripting (XSS) vulnerability in the KinTPV WooConnect plugin (kintpv-connect) for WordPress, developed by kinhelios. The flaw affects all plugin versions up to and including 8.129. It results from improper neutralization of user-supplied input during web page generation, classified under CWE-79. An attacker can inject malicious JavaScript that persists in the application and executes in the browser context of users who view the affected page.

Critical Impact
Stored XSS enables attackers to execute arbitrary JavaScript in victim browsers, hijack sessions, steal credentials, and pivot to administrative actions within affected WordPress sites.

Affected Products

kinhelios KinTPV WooConnect (kintpv-connect) plugin for WordPress
All versions from initial release through 8.129
WordPress sites running KinTPV WooConnect integration with WooCommerce

Discovery Timeline

2024-12-31 - CVE-2024-56233 published to the National Vulnerability Database
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-56233

Vulnerability Analysis

The vulnerability resides in the KinTPV WooConnect plugin, which connects WordPress and WooCommerce installations to the KinTPV point-of-sale system. The plugin accepts input that is later rendered into web pages without adequate sanitization or output encoding. An attacker with the ability to submit data to a vulnerable input field can persist a malicious payload in the WordPress database. The payload then executes whenever a user loads the page containing the stored content.

Exploitation requires user interaction, meaning a victim must visit or render the page that contains the injected script. The scope is changed because the executed script can reach beyond the vulnerable component into the user's authenticated browser session. Successful exploitation impacts confidentiality, integrity, and availability of the targeted user's session and the WordPress site.

Root Cause

The root cause is missing or insufficient input neutralization before output to a web page. The plugin fails to apply standard WordPress escaping functions such as esc_html(), esc_attr(), or wp_kses() to attacker-controlled data before rendering it in HTML context. This allows raw <script> tags and event-handler attributes to be stored and later interpreted by the browser as executable code.

Attack Vector

The attack is delivered over the network and requires no privileges to initiate, though it does require a victim user to load the affected page. An attacker submits a crafted payload containing JavaScript through an exposed input vector in the plugin. The payload is persisted server-side. When an administrator or other site user opens the page that renders the stored data, the injected script executes in their browser under the site's origin. The attacker can then steal session cookies, perform actions as the victim, or redirect users to attacker-controlled infrastructure. See the Patchstack Vulnerability Report for additional context.

Detection Methods for CVE-2024-56233

Indicators of Compromise

Unexpected <script> tags, javascript: URIs, or DOM event handlers (onerror, onload, onmouseover) stored in WordPress database tables such as wp_postmeta or plugin-specific tables used by kintpv-connect.
Outbound HTTP requests from administrator browsers to unfamiliar domains shortly after viewing plugin-rendered pages.
New or modified administrator accounts, plugins, or theme files created during sessions associated with XSS payload execution.

Detection Strategies

Scan WordPress database content for HTML and JavaScript patterns within fields managed by the KinTPV WooConnect plugin.
Inspect web server access logs for POST requests to plugin endpoints carrying URL-encoded <script> or onerror= payloads.
Review browser Content Security Policy (CSP) violation reports for inline script execution originating from plugin-controlled pages.

Monitoring Recommendations

Enable WordPress audit logging to track changes made by privileged users immediately after they access plugin pages.
Monitor for anomalous session activity such as cookie theft, concurrent sessions, or geographically improbable logins for administrator accounts.
Alert on outbound network connections from administrative workstations to newly registered or low-reputation domains.

How to Mitigate CVE-2024-56233

Immediate Actions Required

Identify all WordPress installations running the KinTPV WooConnect (kintpv-connect) plugin at version 8.129 or earlier.
Disable or remove the plugin until a patched release is verified and installed.
Audit existing plugin-managed content in the database and remove any entries containing script tags or event-handler attributes.
Force a password reset and session invalidation for administrator accounts that may have viewed compromised pages.

Patch Information

At the time of publication, no fixed version is listed in the available vulnerability data. Administrators should consult the vendor and the Patchstack Vulnerability Report for updates on a patched release beyond version 8.129.

Workarounds

Deploy a Web Application Firewall (WAF) rule set that blocks XSS payload patterns targeting WordPress plugin endpoints.
Implement a strict Content Security Policy that disallows inline scripts and restricts script sources to trusted origins.
Restrict access to WordPress administrative interfaces by IP allowlist or VPN until the plugin is patched or replaced.
Limit which user roles can submit content to plugin-managed fields, reducing the population of potential attackers.

bash

# Example: deactivate the vulnerable plugin via WP-CLI
wp plugin deactivate kintpv-connect

# Optional: remove the plugin entirely until a patched version is available
wp plugin uninstall kintpv-connect

# Example restrictive Content Security Policy header (configure in web server)
# Add to nginx server block or Apache config:
# add_header Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'; frame-ancestors 'self';";