What the vulnerability does
01Description
The Gallery by BestWebSoft plugin for WordPress is vulnerable to SQL Injection via the '_gallery_order_{post_id}' parameter array keys in all versions up to, and including, 4.7.9. This is due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. The `gllr_save_postdata()` function stores unsanitized array keys from `$_POST` directly into post meta, which are later used in SQL queries without prepared statements. This makes it possible for authenticated attackers, with Editor-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
Explanation of Vulnerability in Simple Terms
02Summary
The Gallery by BestWebSoft plugin for WordPress versions 4.7.9 and earlier contains a SQL injection vulnerability in database queries. An authenticated administrator can inject malicious SQL code through plugin parameters, potentially reading, modifying, or deleting database contents. This vulnerability requires administrator-level access to exploit.
What an attacker can do
03Attacker Capabilities
Read, modify, or delete data from the WordPress database by injecting SQL commands.
Potential impact on your site
04Site Impact
A compromised admin account could expose sensitive data, alter site content, or destroy the database.
Conditions required to exploit
05Prerequisites
Attacker must have administrator-level access to the WordPress site.
Key dates
06Disclosure timeline
August 16, 2026
CVE published
