Broken Link Checker by AIOSEO SQL Injection Vulnerability

A SQL injection vulnerability has been identified in the Broken Link Checker by AIOSEO plugin for WordPress, affecting all versions through 1.2.3. The vulnerability arises from inadequate escaping of user-supplied data in the 'orderBy' parameter, allowing authenticated attackers with Contributor-level access or higher to inject additional SQL queries. This exploitation could lead to unauthorized access to sensitive information in the database.

Impact

Exploitation of this vulnerability allows for SQL injection, where attackers can manipulate SQL queries to extract sensitive data from the database.

Reproduction

To reproduce this vulnerability, an authenticated user with Contributor-level access or higher can send a request to the WordPress site with the 'orderBy' parameter. The lack of proper input sanitization allows for the injection of malicious SQL code, which is then executed by the database.

Remediation

Users are advised to update the Broken Link Checker by AIOSEO plugin to version 1.2.4 or later, where this vulnerability has been patched.