CVE-2025-6344 is a critical SQL Injection vulnerability identified in version 1.0 of the code-projects Online Shoe Store application. The vulnerability resides in the /contactus.php file, specifically in the handling of the 'email' parameter. This parameter is susceptible to malicious input that can manipulate backend SQL queries, allowing an attacker to execute arbitrary SQL commands remotely without any authentication or user interaction. The vulnerability is exploitable over the network (AV:N) with low attack complexity (AC:L), requiring no privileges (PR:N) and no user interaction (UI:N). The impact on confidentiality, integrity, and availability is limited but present (VC:L, VI:L, VA:L), indicating that an attacker could potentially read, modify, or delete data within the database, but the scope is confined to the vulnerable application without affecting other components or systems (SC:N, SI:N, SA:N). The vulnerability has a CVSS 4.0 base score of 6.9, categorized as medium severity. Although no public exploits are currently known in the wild, the exploit details have been disclosed, increasing the risk of exploitation. The vulnerability's presence in an e-commerce platform's contact form could allow attackers to extract sensitive customer data, manipulate order information, or disrupt service availability, potentially leading to financial loss and reputational damage.

For European organizations using the code-projects Online Shoe Store 1.0, this vulnerability poses a significant risk to the confidentiality and integrity of customer data and transactional information. Exploitation could lead to unauthorized data disclosure, including personal identifiable information (PII) such as customer emails and contact details, which is particularly sensitive under GDPR regulations. Integrity violations could result in fraudulent orders or manipulation of stored data, undermining business operations and customer trust. Availability impacts, while limited, could disrupt customer communications or order processing. Given the remote and unauthenticated nature of the exploit, attackers could automate attacks at scale, increasing the risk of widespread compromise. This threat is especially critical for small to medium-sized European retailers relying on this software without robust security controls or timely patching processes. Additionally, the public disclosure of the exploit details may accelerate attack attempts, necessitating immediate attention to mitigate potential breaches and compliance violations.

1. Immediate upgrade or patching: Organizations should verify if a patched version or official fix is available from code-projects and apply it without delay. 2. Input validation and parameterized queries: If patching is not immediately possible, implement strict server-side input validation on the 'email' parameter to reject malicious payloads and refactor database queries to use parameterized statements or prepared queries to prevent SQL injection. 3. Web application firewall (WAF): Deploy or update WAF rules to detect and block SQL injection attempts targeting the /contactus.php endpoint, focusing on suspicious patterns in the 'email' parameter. 4. Monitoring and logging: Enhance logging of web requests to /contactus.php and monitor for anomalous query patterns or repeated injection attempts to enable rapid detection and response. 5. Network segmentation: Isolate the vulnerable application backend from critical internal systems to limit lateral movement in case of compromise. 6. Incident response readiness: Prepare for potential data breach scenarios by reviewing incident response plans, including GDPR notification requirements. 7. Vendor engagement: Engage with code-projects for timely updates and security advisories, and consider alternative e-commerce platforms with stronger security postures if remediation is delayed.