CVE-2026-32550 Overview
CVE-2026-32550 is a SQL Injection vulnerability affecting the Kadence Shop Kit WordPress plugin in versions <= 3.0.6. The flaw allows an authenticated user with Subscriber-level privileges to inject arbitrary SQL statements into database queries executed by the plugin. Because Subscriber is the lowest authenticated role on most WordPress sites, the barrier to exploitation is low on installations that allow open user registration. The vulnerability is tracked under CWE-89: Improper Neutralization of Special Elements used in an SQL Command.
Critical Impact
An authenticated Subscriber can extract sensitive data from the WordPress database, including user records and session tokens, and pivot toward broader site compromise.
Affected Products
- Kadence Shop Kit WordPress plugin, versions <= 3.0.6
- WordPress installations with the plugin enabled
- Sites permitting Subscriber (or higher) user registration
Discovery Timeline
- 2026-08-27 - CVE-2026-32550 published to NVD
- 2026-08-27 - Last updated in NVD database
Technical Details for CVE-2026-32550
Vulnerability Analysis
The Kadence Shop Kit plugin fails to properly sanitize or parameterize user-supplied input before incorporating it into SQL statements. An attacker holding a Subscriber account can send crafted requests to a vulnerable plugin endpoint and manipulate the resulting query. Because the injection occurs after authentication, the plugin performs its request handling in the context of a logged-in session, which typically has access to database read paths the plugin exposes.
Successful exploitation permits arbitrary database reads. Attackers can enumerate WordPress wp_users records, extract password hashes, harvest session tokens from wp_usermeta, and read plugin or commerce data. The scope is marked as changed in the CVSS vector, indicating the injected query can reach data outside the plugin's intended trust boundary.
Root Cause
The root cause is improper neutralization of special SQL characters in input passed to a database query, classified as CWE-89. The plugin concatenates untrusted request parameters into SQL strings instead of using prepared statements through the WordPress $wpdb->prepare() API. Any Subscriber-authenticated request that reaches the vulnerable code path can therefore alter query structure.
Attack Vector
Exploitation is remote over the network and requires low privileges and no user interaction. An attacker registers or obtains a Subscriber account, authenticates to WordPress, and issues HTTP requests to the vulnerable plugin endpoint with SQL metacharacters embedded in the targeted parameter. Full technical details are available in the Patchstack Kadence Shop Kit SQL Injection Advisory.
No public proof-of-concept code has been verified for this advisory. Refer to the vendor advisory for endpoint and parameter specifics.
Detection Methods for CVE-2026-32550
Indicators of Compromise
- HTTP requests to Kadence Shop Kit endpoints containing SQL metacharacters such as ', UNION SELECT, SLEEP(, INFORMATION_SCHEMA, or 0x encoded payloads.
- Unusual query patterns or error messages in the WordPress or MySQL error logs referencing plugin database tables.
- Newly created Subscriber accounts followed shortly by plugin endpoint access from the same IP.
Detection Strategies
- Inspect web server access logs for authenticated requests to wp-admin/admin-ajax.php or plugin REST routes that include SQL syntax in query parameters or POST bodies.
- Deploy WAF rules that flag SQL injection signatures scoped to requests carrying valid WordPress authentication cookies.
- Correlate WordPress authentication events with database anomaly telemetry, such as unexpected UNION-based queries against wp_users.
Monitoring Recommendations
- Enable MySQL general or slow query logging on staging or forensic instances to capture query shapes originating from the plugin.
- Alert on spikes in Subscriber account registrations followed by plugin endpoint activity.
- Track outbound data volume from the WordPress host to identify bulk exfiltration attempts.
How to Mitigate CVE-2026-32550
Immediate Actions Required
- Upgrade Kadence Shop Kit to a version above 3.0.6 once the vendor publishes a fixed release, as documented in the Patchstack advisory.
- Disable open user registration on WordPress if a Subscriber role is not required for business operations.
- Audit existing Subscriber accounts for unfamiliar users and revoke suspicious sessions.
Patch Information
Refer to the Patchstack Kadence Shop Kit SQL Injection Advisory for the authoritative fixed-version guidance. At publication time, only versions <= 3.0.6 are confirmed vulnerable. Apply vendor updates through the WordPress plugin management console and validate the installed version afterward.
Workarounds
- Deactivate and remove the Kadence Shop Kit plugin until a patched version is confirmed installed.
- Deploy a WordPress-aware WAF with SQL injection rules that inspect authenticated request bodies and query strings.
- Rotate WordPress user passwords, wp-config.php secret keys, and any API tokens stored in the database if compromise is suspected.
# Configuration example: disable open registration and enforce role via wp-config.php / options
wp option update users_can_register 0
wp option update default_role subscriber
wp plugin deactivate kadence-shop-kit
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
