SQL injection vulnerability in Simple PHP Shopping Cart

The SQL injection vulnerability in Simple PHP Shopping Cart poses a significant threat to online stores utilizing this software. An attacker can exploit this flaw by crafting malicious SQL queries through the category_id parameter. Successful exploitation allows the attacker to bypass security measures and directly query the database. This can lead to the exfiltration of sensitive customer data, including usernames, passwords, credit card details, order history, and other personally identifiable information (PII). The attacker could also potentially modify or delete data, disrupting store operations and causing further damage. The blast radius extends to all users of the affected store, as their data is at risk.

Small to medium-sized online stores utilizing Simple PHP Shopping Cart, particularly those running older, unpatched installations. Shared hosting environments where multiple stores share the same database are at increased risk, as a successful attack on one store could potentially compromise others.

• php: Examine the category.php file for unsanitized use of the category_id parameter. Search for SQL queries constructed using user-supplied input without proper escaping.

// Example of vulnerable code (simplified)
$sql = "SELECT * FROM categories WHERE id = " . $_GET['category_id'];

• generic web: Monitor web server access logs for requests containing unusual or malicious SQL syntax in the category_id parameter. Look for patterns indicative of SQL injection attempts.

grep -i "union select" /var/log/apache2/access.log

• database (mysql): Monitor MySQL query logs for suspicious SQL queries originating from the Simple PHP Shopping Cart application. Look for queries attempting to access sensitive tables or data.

SHOW PROCESSLIST; -- Check for long-running or unusual queries

1. 2024-05-16Disclosure

   disclosure

1. 予約済み2024-05-13
2. 公開日2024-05-16
3. 更新日2024-08-01
4. EPSS 更新日2026-04-02

The primary mitigation for CVE-2024-4826 is to immediately upgrade Simple PHP Shopping Cart to version 0.9.1, which contains the necessary fix. If upgrading is not immediately feasible due to compatibility issues or downtime concerns, consider implementing temporary workarounds. Input validation and sanitization on the category_id parameter can help reduce the attack surface, though this is not a substitute for patching. Web application firewalls (WAFs) configured to detect and block SQL injection attempts can provide an additional layer of defense. Monitor database logs for suspicious SQL queries that might indicate an ongoing attack.