CVE-2020-37226: SQL Injection in Joomla J2 JOBS 1.3.0

Successful exploitation of CVE-2020-37226 allows an authenticated attacker to bypass intended security controls and directly interact with the underlying database. By injecting malicious SQL code through the 'sortby' parameter, an attacker can craft queries to extract sensitive information such as usernames, passwords, configuration details, and potentially even user data stored within the database. The attacker's ability to manipulate database queries significantly expands the potential impact, enabling data exfiltration, modification, or even deletion. While requiring authentication, the ease of exploitation with automated tools amplifies the risk, particularly for systems with weak password policies or compromised administrator accounts. This vulnerability shares similarities with other SQL injection flaws where attackers can leverage database access for broader system compromise.

1. 公開日2026-05-13

The primary mitigation for CVE-2020-37226 is to upgrade to a patched version of Joomla J2 JOBS. Unfortunately, a fixed version may not be immediately available. As an interim measure, implement a Web Application Firewall (WAF) rule to filter out malicious SQL injection attempts targeting the 'sortby' parameter. Specifically, the WAF should be configured to block POST requests to the administrator index containing suspicious SQL syntax within the 'sortby' field. Additionally, review and strengthen authentication mechanisms, including enforcing strong passwords and implementing multi-factor authentication for administrator accounts. After implementing WAF rules, verify their effectiveness by attempting to trigger the vulnerability with a test payload and confirming that the WAF blocks the request.