CVE-2026-4662 HIGH

CVE-2026-4662: JetEngine <= 3.8.6.1 - Unauthenticated SQL Injection via Listing Grid 'filtered_query' Parameter

Vendor Crocoblock
Product JetEngine
Weakness CWE-89 · SQLi
Published March 24, 2026
Last update April 8, 2026

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

The JetEngine plugin for WordPress is vulnerable to SQL Injection via the `listing_load_more` AJAX action in all versions up to, and including, 3.8.6.1. This is due to the `filtered_query` parameter being excluded from the HMAC signature validation (allowing attacker-controlled input to bypass security checks) combined with the `prepare_where_clause()` method in the SQL Query Builder not sanitizing the `compare` operator before concatenating it into SQL statements. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database, provided the site has a JetEngine Listing Grid with Load More enabled that uses a SQL Query Builder query.

Explanation of Vulnerability in Simple Terms

02Summary

JetEngine versions up to 3.8.6.1 contain a SQL injection vulnerability that allows unauthenticated attackers to read sensitive data from the site's database. The vulnerability requires no user interaction and can be exploited over the network. An attacker can extract database contents including user credentials, configuration data, and other stored information.

What an attacker can do

03Attacker Capabilities

Read sensitive data from the site's database, including user information and configuration details.

Potential impact on your site

04Site Impact

Attackers can extract user credentials, private content, and configuration data from your database without logging in.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

March 24, 2026 CVE published
April 8, 2026 Record updated