CVE-2025-6304 is a critical SQL Injection vulnerability identified in version 1.0 of the code-projects Online Shoe Store application, specifically within the /cart.php file. The vulnerability arises from improper sanitization and validation of the 'qty[]' parameter, which is used to specify quantities of items in the shopping cart. An attacker can manipulate this parameter remotely without any authentication or user interaction to inject malicious SQL code. This injection can lead to unauthorized access or modification of the backend database, potentially exposing sensitive customer data, altering order information, or compromising the integrity of the e-commerce platform. The vulnerability is exploitable over the network (AV:N), requires no privileges (PR:N), no user interaction (UI:N), and has low complexity (AC:L), making it relatively easy to exploit. The impact on confidentiality, integrity, and availability is low to moderate, as indicated by the CVSS 4.0 vector, but the exposure of customer data or manipulation of orders can have significant business and reputational consequences. Although no public exploits are currently known in the wild, the vulnerability has been publicly disclosed, increasing the risk of exploitation by opportunistic attackers. No official patches or mitigations have been published by the vendor at this time, which leaves systems running this version exposed. The vulnerability affects only version 1.0 of the Online Shoe Store product, which may limit the scope but still poses a risk to organizations using this specific software version in their e-commerce operations.

For European organizations operating e-commerce platforms using code-projects Online Shoe Store 1.0, this vulnerability presents a tangible risk of data breaches involving customer personal and payment information, which could lead to regulatory non-compliance under GDPR. The integrity of order processing could be compromised, resulting in financial losses and customer dissatisfaction. The ability to remotely exploit this vulnerability without authentication increases the attack surface, especially for small to medium enterprises that may lack robust security monitoring. Given the public disclosure, attackers may develop or share exploit code, increasing the likelihood of targeted attacks. The impact extends beyond direct financial loss to potential legal penalties and damage to brand reputation. Organizations in sectors with high e-commerce activity, such as retail and fashion, are particularly vulnerable. Additionally, the lack of vendor patches means organizations must rely on alternative mitigation strategies to reduce risk.

1. Immediate code review and input validation: Organizations should audit the /cart.php script to implement strict input validation and sanitization for the 'qty[]' parameter, using parameterized queries or prepared statements to prevent SQL injection. 2. Web Application Firewall (WAF): Deploy or update WAF rules to detect and block malicious payloads targeting the 'qty[]' parameter. Custom rules can be created to identify unusual patterns or SQL syntax in requests. 3. Network segmentation and access controls: Limit exposure of the e-commerce application to only necessary network segments and restrict access to trusted IP ranges where feasible. 4. Monitoring and logging: Enhance logging of web application requests and database queries to detect anomalous activities indicative of exploitation attempts. 5. Incident response preparedness: Develop and test incident response plans specific to web application attacks, including rapid isolation and forensic analysis. 6. Vendor engagement: Engage with code-projects to request official patches or updates and monitor for any forthcoming security advisories. 7. Temporary mitigation: If patching is not immediately possible, consider disabling or restricting the vulnerable functionality (e.g., quantity modification) until a secure fix is available. 8. Security awareness: Train developers and administrators on secure coding practices and the importance of input validation to prevent similar vulnerabilities.