CVE-2025-9011 is a SQL Injection vulnerability identified in version 2.0 of the PHPGurukul Online Shopping Portal Project, specifically within the /shopping/signup.php file. The vulnerability arises from improper sanitization or validation of the 'emailid' parameter, which is susceptible to malicious input manipulation. An attacker can exploit this flaw remotely without requiring authentication or user interaction, by injecting crafted SQL statements through the 'emailid' argument. This can lead to unauthorized access or modification of the backend database, potentially exposing sensitive user data or allowing further compromise of the application. The CVSS 4.0 base score is 6.9, indicating a medium severity level. The vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), and partial impacts on confidentiality, integrity, and availability (VC:L, VI:L, VA:L). Although no known exploits are currently observed in the wild, the public disclosure of the exploit code increases the risk of exploitation by attackers. The vulnerability does not require authentication or user interaction, making it easier to exploit remotely. The absence of a patch link suggests that a fix may not yet be available, emphasizing the need for immediate mitigation efforts by users of this software version.

For European organizations utilizing the PHPGurukul Online Shopping Portal Project 2.0, this vulnerability poses a significant risk to the confidentiality and integrity of customer data, including personally identifiable information (PII) such as email addresses. Exploitation could lead to unauthorized data disclosure, data tampering, or even full database compromise, which would undermine customer trust and potentially violate GDPR requirements. The availability impact, while rated low, could still manifest through database corruption or denial of service conditions triggered by malicious queries. Given the online shopping context, this could disrupt business operations, cause financial losses, and damage brand reputation. Furthermore, the remote and unauthenticated nature of the attack vector means that attackers can target these portals from anywhere, increasing the threat surface. European e-commerce platforms are often targeted by cybercriminals due to the volume of transactions and sensitive data processed, making this vulnerability particularly concerning. Organizations failing to address this issue risk regulatory penalties and increased exposure to cyberattacks.

To mitigate this vulnerability, organizations should immediately review and sanitize all inputs to the 'emailid' parameter in the /shopping/signup.php file. Employing prepared statements with parameterized queries or stored procedures is critical to prevent SQL injection. If a patch from the vendor becomes available, it should be applied promptly. In the absence of an official patch, implementing a Web Application Firewall (WAF) with rules specifically designed to detect and block SQL injection attempts targeting the signup functionality can provide a temporary protective layer. Additionally, conducting a thorough code audit of the entire application to identify and remediate other potential injection points is recommended. Organizations should also monitor logs for suspicious activity related to signup requests and implement rate limiting to reduce the risk of automated exploitation. Regular backups of the database should be maintained to enable recovery in case of data corruption or loss. Finally, educating developers on secure coding practices and input validation is essential to prevent similar vulnerabilities in future releases.