CVE-2026-94124: WP EasyCart SQL Injection Vulnerability

CVE-2026-94124 Overview

CVE-2026-94124 is a SQL injection vulnerability in the WP EasyCart WordPress plugin affecting versions up to and including 5.9.4. The flaw allows authenticated users holding the Contributor role to inject arbitrary SQL statements into database queries. Because the vulnerability changes scope, a low-privilege contributor account can reach data and resources beyond the plugin's normal boundary. The issue is tracked under CWE-89: Improper Neutralization of Special Elements used in an SQL Command.

Critical Impact
An authenticated Contributor can execute arbitrary SQL queries against the WordPress database, exposing sensitive data such as user records, session tokens, and configuration secrets stored in wp_options.

Affected Products

WP EasyCart WordPress plugin versions <= 5.9.4
WordPress sites running WP EasyCart with contributor-level user registration enabled
E-commerce deployments relying on WP EasyCart for storefront functionality

Discovery Timeline

2026-09-23 - CVE-2026-94124 published to the National Vulnerability Database (NVD)
2026-09-23 - Last updated in NVD database

Technical Details for CVE-2026-94124

Vulnerability Analysis

The vulnerability stems from improper neutralization of user-supplied input passed into SQL statements executed by the WP EasyCart plugin. An attacker authenticated as a Contributor supplies crafted input through a plugin-exposed parameter. The plugin concatenates the input into a SQL query rather than binding it as a parameter. The database then executes attacker-controlled SQL clauses.

Exploitation requires a valid Contributor account, which is a low bar on WordPress sites that permit open registration or that assign the Contributor role by default. Once authenticated, the attacker interacts with the vulnerable plugin endpoint over the network. Successful exploitation yields read access to arbitrary database rows and can be chained with other flaws to escalate privileges within WordPress.

Root Cause

The root cause is missing or insufficient input sanitization before values are placed into SQL statements. WP EasyCart does not consistently use the WordPress $wpdb->prepare() API or equivalent parameterized query construction. This leaves at least one code path where attacker-controlled data reaches the SQL parser as executable syntax.

Attack Vector

The attack vector is network-based and requires authentication as a Contributor. No user interaction is required. The attacker sends crafted HTTP requests to a plugin endpoint that forwards unsanitized input into a database query. Full technical details are available in the Patchstack advisory for WP EasyCart 5.9.4 SQL Injection.

No public proof-of-concept exploit code has been published for CVE-2026-94124 at the time of writing.

Detection Methods for CVE-2026-94124

Indicators of Compromise

HTTP requests to WP EasyCart plugin endpoints containing SQL metacharacters such as ', --, UNION, SLEEP(, or information_schema.
Unexpected database read errors, syntax errors, or long-running queries originating from the wp-easycart plugin context.
New or modified rows in wp_users, wp_usermeta, or wp_options correlated with Contributor account activity.

Detection Strategies

Enable MySQL general query logging or slow query logging and alert on queries referencing information_schema from plugin-owned code paths.
Deploy a WordPress-aware Web Application Firewall rule set that inspects authenticated POST and GET parameters for SQL injection payloads.
Correlate WordPress authentication logs with plugin request logs to identify Contributor accounts issuing anomalous request volumes.

Monitoring Recommendations

Monitor creation of new Contributor-level accounts, especially on sites with open registration.
Track outbound traffic from the web server for signs of data exfiltration following suspicious authenticated requests.
Baseline normal WP EasyCart request patterns and alert on deviations in parameter length, character sets, or response sizes.

How to Mitigate CVE-2026-94124

Immediate Actions Required

Update WP EasyCart to a version later than 5.9.4 as soon as the vendor releases a patched build.
Audit WordPress user accounts and remove or downgrade unnecessary Contributor-level accounts.
Disable open user registration or restrict the default role to Subscriber if Contributor access is not required.
Review database and application logs for indicators of prior exploitation attempts.

Patch Information

Refer to the Patchstack advisory for the fixed version and vendor release notes. Apply the patched WP EasyCart release through the WordPress plugin manager and verify the installed version after upgrade.

Workarounds

Deploy a Web Application Firewall rule that blocks SQL injection payloads targeting WP EasyCart request parameters until the plugin can be patched.
Temporarily deactivate the WP EasyCart plugin on sites that do not actively use its storefront features.
Restrict access to /wp-admin/ and plugin-specific endpoints by source IP where operationally feasible.

bash

# Verify installed WP EasyCart version and disable if vulnerable
wp plugin get wp-easycart --field=version
wp plugin deactivate wp-easycart