CVE-2026-49076 Overview
CVE-2026-49076 is an unauthenticated SQL injection vulnerability affecting the JetEngine plugin for WordPress in versions up to and including 3.8.9.1. The flaw is tracked as CWE-89, Improper Neutralization of Special Elements used in an SQL Command. Remote attackers can submit crafted input over the network without authentication or user interaction. Successful exploitation enables manipulation of backend database queries against WordPress sites running the affected plugin versions.
Critical Impact
Unauthenticated attackers can inject arbitrary SQL into JetEngine queries, exposing database contents and impacting site availability across vulnerable WordPress installations.
Affected Products
- Crocoblock JetEngine plugin for WordPress, versions <= 3.8.9.1
- WordPress sites with JetEngine installed and activated
- Web hosting environments running vulnerable JetEngine deployments
Discovery Timeline
- 2026-06-17 - CVE-2026-49076 published to the National Vulnerability Database (NVD)
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2026-49076
Vulnerability Analysis
The vulnerability resides in the JetEngine plugin, a content and custom post type builder used across WordPress sites. The flaw allows attackers to inject SQL fragments into database queries processed by the plugin. Because the attack vector is network-based and requires no authentication or user interaction, any internet-reachable site running an affected JetEngine version is exposed. The scope is marked as changed, indicating that exploitation can affect resources beyond the immediate vulnerable component, including the underlying WordPress database tables shared by other plugins.
Root Cause
The root cause is improper neutralization of special elements in SQL statements (CWE-89). User-controlled input reaches a database query without adequate sanitization, parameterization, or use of WordPress prepared statement helpers such as $wpdb->prepare(). Attacker-supplied values are concatenated into the SQL string and interpreted as query syntax rather than data.
Attack Vector
An unauthenticated remote attacker sends crafted HTTP requests to endpoints exposed by the JetEngine plugin. Injected SQL payloads alter the structure of executed queries, enabling extraction of sensitive data from the WordPress database. The vulnerability mechanism is documented in the Patchstack SQL Injection Vulnerability advisory. No verified proof-of-concept code has been published at the time of disclosure.
Detection Methods for CVE-2026-49076
Indicators of Compromise
- HTTP requests to JetEngine plugin endpoints containing SQL syntax tokens such as UNION SELECT, SLEEP(, OR 1=1, or encoded variants
- Unexpected outbound queries from the WordPress database user or unusual SELECT patterns in MySQL slow query logs
- Web server access logs showing repeated requests to /wp-admin/admin-ajax.php or JetEngine REST routes with anomalous query parameters
Detection Strategies
- Deploy Web Application Firewall (WAF) rules that flag SQL injection patterns in parameters sent to JetEngine routes
- Enable WordPress and MySQL query logging, and alert on query errors originating from the plugin
- Compare installed JetEngine plugin version against 3.8.9.1 and flag any installation at or below that release
Monitoring Recommendations
- Monitor database authentication events and review WordPress user table modifications for unauthorized administrator accounts
- Track HTTP 500 and 200 responses to JetEngine endpoints carrying suspicious parameter content
- Correlate web access logs with database query logs to surface injection attempts that bypass perimeter filters
How to Mitigate CVE-2026-49076
Immediate Actions Required
- Identify all WordPress sites running JetEngine and inventory the installed version
- Update JetEngine to a version newer than 3.8.9.1 as soon as the vendor releases a fixed build
- Restrict access to WordPress administrative and AJAX endpoints using IP allowlists or authentication where feasible
- Rotate database credentials and WordPress secret keys if exploitation is suspected
Patch Information
Refer to the Patchstack advisory for JetEngine SQL Injection for current patch status and remediation guidance. Apply the vendor-supplied update through the WordPress plugin manager or via direct plugin replacement once available.
Workarounds
- Deploy virtual patching through Patchstack or a WAF with rules targeting SQL injection against JetEngine routes
- Temporarily deactivate the JetEngine plugin on internet-facing sites until a patched version is installed
- Apply database-layer least privilege by restricting the WordPress database user to only the permissions required for plugin operation
# Configuration example: identify affected JetEngine installations using WP-CLI
wp plugin list --name=jet-engine --fields=name,status,version
wp plugin deactivate jet-engine
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
