CVE-2025-32307: Chameleon HTML5 Audio Player SQLi Flaw

CVE-2025-32307 Overview

CVE-2025-32307 is a SQL injection vulnerability in the LambertGroup Chameleon HTML5 Audio Player With/Without Playlist plugin (lbg-audio1-html5) for WordPress. The flaw stems from improper neutralization of special elements used in SQL commands [CWE-89]. All plugin versions up to and including 3.5.6 are affected. An authenticated attacker with low privileges can inject arbitrary SQL queries through the vulnerable plugin endpoints. Successful exploitation enables database content extraction and integrity impact on adjacent components due to a scope change.

Critical Impact
A low-privileged authenticated attacker can issue arbitrary SQL queries against the WordPress database, exposing sensitive data including credentials and session tokens.

Affected Products

LambertGroup Chameleon HTML5 Audio Player With/Without Playlist (lbg-audio1-html5)
Plugin versions from n/a through 3.5.6
WordPress installations using the vulnerable plugin

Discovery Timeline

2025-05-16 - CVE-2025-32307 published to NVD
2026-04-23 - Last updated in NVD database

Technical Details for CVE-2025-32307

Vulnerability Analysis

The vulnerability resides in the Chameleon HTML5 Audio Player plugin's handling of user-supplied input passed to database queries. User input reaches SQL statements without proper sanitization or use of parameterized queries. This violates the input validation expectations enforced by WordPress's $wpdb->prepare() API.

An authenticated attacker with subscriber-level or higher access can manipulate query parameters consumed by the plugin. The injected payload alters the structure of the original query, allowing data exfiltration through UNION-based or boolean-based blind techniques. The scope change indicates that exploitation impacts resources beyond the vulnerable component, including the underlying database engine accessible to other WordPress components.

Root Cause

The plugin concatenates request parameters directly into SQL statements instead of using prepared statements. Without input filtering, escaping, or type casting, special characters such as single quotes, semicolons, and SQL keywords pass through unchanged. This pattern is the canonical cause of [CWE-89] SQL Injection flaws in WordPress plugins.

Attack Vector

The attack is delivered remotely over the network. The attacker authenticates to WordPress with any low-privileged account and submits a crafted request to a plugin endpoint that consumes unsanitized input. The malicious payload modifies the SQL query executed by the plugin against the WordPress database. No user interaction is required to complete the exploitation chain. Refer to the Patchstack WordPress Vulnerability Alert for advisory details.

Detection Methods for CVE-2025-32307

Indicators of Compromise

Unexpected HTTP requests to lbg-audio1-html5 plugin endpoints containing SQL metacharacters such as ', --, UNION, or SLEEP(.
Anomalous database queries in MySQL slow query or general query logs originating from the plugin's PHP files.
New or modified WordPress administrator accounts and unexpected entries in wp_users or wp_usermeta tables.
Sudden spikes in authenticated requests from subscriber-level accounts targeting plugin AJAX handlers.

Detection Strategies

Deploy a Web Application Firewall (WAF) rule that inspects parameters sent to lbg-audio1-html5 endpoints for SQL syntax patterns.
Enable MySQL general query logging on staging or audit environments and alert on queries containing concatenated user input from plugin code paths.
Correlate authentication events with subsequent plugin API calls to identify low-privileged accounts attempting injection.

Monitoring Recommendations

Forward WordPress access logs and PHP error logs to a centralized log platform for correlation and retention.
Alert on HTTP 500 responses from plugin endpoints, which often accompany malformed injection attempts.
Track outbound database read volumes to identify mass extraction consistent with UNION-based injection.

How to Mitigate CVE-2025-32307

Immediate Actions Required

Disable or remove the Chameleon HTML5 Audio Player plugin until a patched release is confirmed and deployed.
Audit WordPress user accounts and revoke any unrecognized subscriber-level or higher accounts created recently.
Rotate WordPress administrator passwords, secret keys in wp-config.php, and any API tokens stored in the database.

Patch Information

No fixed version is identified in the advisory at this time. Versions through 3.5.6 are affected. Monitor the Patchstack WordPress Vulnerability Alert and the vendor's distribution channel for an updated release addressing CVE-2025-32307.

Workarounds

Block access to plugin endpoints at the web server or WAF layer using path-based rules matching lbg-audio1-html5.
Restrict registration of new low-privileged WordPress accounts on internet-facing sites until a patch is applied.
Apply the principle of least privilege to the database user configured in wp-config.php to limit injection impact.

bash

# Example NGINX rule to block requests to the vulnerable plugin path
location ~* /wp-content/plugins/lbg-audio1-html5/ {
    deny all;
    return 403;
}