CVE-2025-9757 is a SQL Injection vulnerability identified in version 1.0 of the Campcodes Courier Management System, specifically within the Login function handled by the /ajax.php file. The vulnerability arises from improper sanitization or validation of the 'email' parameter, which can be manipulated by an attacker to inject malicious SQL code. This flaw allows an unauthenticated remote attacker to execute arbitrary SQL commands against the backend database. The vulnerability does not require any user interaction or authentication, making it remotely exploitable over the network. The CVSS 4.0 score of 6.9 classifies it as medium severity, reflecting the ease of exploitation (low attack complexity, no privileges or user interaction required) but limited impact on confidentiality, integrity, and availability (each rated low). Exploiting this vulnerability could lead to unauthorized access to user credentials, leakage of sensitive courier data, or manipulation of database records, potentially undermining the integrity of the courier management system. Although no public exploits are currently known in the wild, the vulnerability has been publicly disclosed, increasing the risk of future exploitation. The lack of available patches or mitigation guidance from the vendor further elevates the urgency for affected organizations to take proactive measures.

For European organizations using the Campcodes Courier Management System 1.0, this vulnerability poses a significant risk to the confidentiality and integrity of courier and customer data. Courier management systems typically handle sensitive shipment details, customer contact information, and operational logistics data, which if exposed or altered, could disrupt supply chains and damage customer trust. Unauthorized database access could lead to data breaches involving personal information protected under GDPR, resulting in regulatory penalties and reputational harm. Additionally, attackers could manipulate shipment records, causing operational disruptions or financial losses. The remote and unauthenticated nature of the exploit increases the likelihood of attacks, especially in organizations with internet-facing instances of the affected system. Given the critical role of courier services in European commerce and logistics, exploitation could have cascading effects on business continuity and service reliability.

1. Immediate mitigation should include restricting external access to the affected /ajax.php endpoint by implementing network-level controls such as firewalls or VPNs to limit exposure. 2. Employ Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection patterns targeting the 'email' parameter. 3. Conduct thorough input validation and sanitization on all user-supplied inputs, particularly the 'email' field, using parameterized queries or prepared statements to prevent injection. 4. Monitor logs for suspicious login attempts or unusual database errors indicative of injection attempts. 5. If possible, upgrade to a patched version of the software once available or apply vendor-provided fixes promptly. 6. As a temporary workaround, disable the vulnerable login functionality if alternative authentication mechanisms exist. 7. Educate IT and security teams about this vulnerability to ensure rapid detection and response to potential exploitation attempts. 8. Regularly back up databases and verify backup integrity to enable recovery in case of data tampering.