Customer Photo Gallery is a known PrestaShop module by MyPresta. It allows your shop’s customers to upload pictures & videos to your shop.

What are SQL Injections?

A variety of web applications employ Database systems for the provision of backend functionality. A widely used language used to query, operate, and administer database systems is Structured Query Language (SQL). Owing to its rampant use in web applications globally, SQL-powered databases are easy and frequent targets for cyber-criminals, the severity of which depends solely on the intricacies of each system being targeted.

An SQL injection attack is one of the most frequently occurring web hacks prevalent today, wherein an attacker uses web page inputs (such as GET, POST, Cookies, etc.) to insert malicious code in SQL statements. It usually occurs when a web page asks for user input like username/userid. The attacker uses this opportunity to insert a SQL statement that ends up running on your database without your knowledge.

The absence of input sanitization and escaping rules are the primary reasons behind SQLi vulnerability. SQLi is by far one of the most critical vulnerabilities which can compromise your entire web app & server.

Impact

An attacker can supply crafted input to break out of the data context in which their input
appears and interfere with the structure of the surrounding query. A wide range of damaging
attacks can often be delivered via SQL injection, including:

• Complete compromise of data stored in the Database
• Reading or modifying critical application data
• Interfering with application logic
• Escalating privileges within the database
• Taking control of the database server

Steps to Mitigation

To safeguard your PrestaShop store from SQLi attacks, do the following:

• Sanitize and validate all user data before using them in the code
• Use stored procedure
• Use Prepared Statements (Parameterized Queries)
• Minimize the privileges assigned to every database account in your environment
• Do not assign DBA or admin type access rights to your application accounts.
  Have multiple users for different tasks
• Allow only secured SQL statements
• Conduct routine security audits.

Note: The PoC (Proof-of-Concept) and other details of the vulnerability have been deliberately skipped in the article to provide PrestaShop users with the necessary time to secure themselves from the vulnerability.

If you have any questions regarding the vulnerability or need help securing your PrestaShop store, contact us with the chat widget down below!