CVE-2026-49084 Overview
CVE-2026-49084 is an unauthenticated SQL injection vulnerability affecting the JetEngine WordPress plugin in versions prior to 3.8.9.1. The flaw allows remote attackers to inject malicious SQL statements without authentication, enabling database query manipulation against affected WordPress sites. The vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command). Patchstack published an advisory detailing the issue and confirming the fix in JetEngine 3.8.9.1.
Critical Impact
Unauthenticated attackers can inject SQL queries over the network with low complexity, potentially exposing sensitive database contents and impacting WordPress site availability.
Affected Products
- JetEngine WordPress plugin versions prior to 3.8.9.1
- WordPress sites using JetEngine for dynamic content rendering
- Any WordPress deployment with vulnerable JetEngine installations exposed to the internet
Discovery Timeline
- 2026-06-17 - CVE-2026-49084 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2026-49084
Vulnerability Analysis
The vulnerability resides in the JetEngine plugin, a WordPress extension used to create dynamic content, custom post types, and listings. JetEngine processes user-supplied input in database queries without sufficient sanitization or parameterization. Attackers can submit crafted request parameters that alter the intended SQL statement structure.
The flaw does not require authentication, meaning anonymous visitors can reach the vulnerable code path. According to the Patchstack advisory, the issue exists in all versions of JetEngine before 3.8.9.1. The Crocoblock development team addressed the issue in the 3.8.9.1 release.
Root Cause
The root cause is improper neutralization of special elements in SQL commands (CWE-89). User-controlled input flows into database queries without being properly escaped or bound through prepared statements. The absence of input validation on a publicly reachable endpoint permits unauthenticated injection.
Attack Vector
The attack is exploitable over the network with low complexity and no privileges or user interaction required. An attacker sends crafted HTTP requests containing SQL payloads to a vulnerable WordPress site running JetEngine. The injected SQL executes within the WordPress database context, allowing query manipulation and potential data extraction. No verified public proof-of-concept code has been published. Refer to the Patchstack SQL Injection Advisory for additional technical details.
Detection Methods for CVE-2026-49084
Indicators of Compromise
- Unusual HTTP requests to JetEngine endpoints containing SQL syntax such as UNION SELECT, SLEEP(, OR 1=1, or encoded equivalents
- Unexpected database errors recorded in WordPress logs referencing JetEngine query handlers
- Spikes in slow database queries or anomalous outbound traffic following requests to plugin endpoints
Detection Strategies
- Inspect web server access logs for requests targeting JetEngine routes with SQL metacharacters such as single quotes, comments (--, #), or stacked queries
- Deploy WordPress-aware web application firewall (WAF) rules that flag SQL injection patterns against plugin endpoints
- Correlate WordPress debug.log entries showing wpdb errors with the corresponding source IP addresses
Monitoring Recommendations
- Enable query logging on the WordPress database to baseline normal JetEngine query patterns
- Monitor plugin version inventory across hosted sites and alert when JetEngine versions below 3.8.9.1 are detected
- Forward web server, PHP error, and database logs to a centralized analytics platform for correlation and retention
How to Mitigate CVE-2026-49084
Immediate Actions Required
- Upgrade JetEngine to version 3.8.9.1 or later on all WordPress installations
- Audit user accounts, database contents, and access logs for evidence of prior exploitation before patching
- Restrict access to administrative endpoints and rotate database credentials if compromise is suspected
Patch Information
Crocoblock released JetEngine 3.8.9.1 to remediate the unauthenticated SQL injection. Site administrators should update through the WordPress plugin manager or download the patched release directly. The Patchstack SQL Injection Advisory lists 3.8.9.1 as the fixed version.
Workarounds
- Deploy a virtual patch through a WAF that blocks SQL injection payloads targeting JetEngine request parameters
- Temporarily disable the JetEngine plugin on internet-facing sites until the upgrade can be completed
- Restrict the WordPress database account to least-privilege permissions to limit the impact of any successful injection
# Update JetEngine via WP-CLI to the patched release
wp plugin update jet-engine --version=3.8.9.1
wp plugin list --name=jet-engine --fields=name,version,status
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
