CVE-2025-4765 is a SQL Injection vulnerability identified in version 2.1 of the PHPGurukul Zoo Management System, specifically within the /admin/contactus.php file. The vulnerability arises from improper sanitization of the 'mobnum' parameter, which is susceptible to malicious input manipulation. An attacker can exploit this flaw remotely without any authentication or user interaction, injecting crafted SQL commands that the backend database executes. This can lead to unauthorized data access, modification, or deletion, potentially compromising the confidentiality, integrity, and availability of the system's data. The vulnerability has been publicly disclosed, increasing the risk of exploitation, although no known exploits are currently reported in the wild. The CVSS 4.0 base score is 6.9, categorized as medium severity, reflecting the ease of remote exploitation without privileges but limited scope and impact on system components. The vulnerability affects a niche product used for managing zoo operations, which may include sensitive animal records, staff information, and operational data.

For European organizations using the PHPGurukul Zoo Management System 2.1, this vulnerability poses a significant risk to data security and operational continuity. Exploitation could lead to unauthorized disclosure of sensitive information such as animal health records, staff contact details, and potentially financial or operational data. This could result in reputational damage, regulatory non-compliance (especially under GDPR if personal data is involved), and operational disruptions. Given the remote and unauthenticated nature of the exploit, attackers could leverage this vulnerability to establish a foothold within the network, potentially pivoting to other systems. Although the product is specialized, zoos and related wildlife management organizations in Europe that rely on this system could face targeted attacks, especially if they hold valuable or sensitive data. The medium severity rating suggests a moderate but tangible risk that requires timely attention.

1. Immediate application of patches or updates from PHPGurukul once available is critical. Since no patch links are currently provided, organizations should contact the vendor for remediation guidance. 2. Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the 'mobnum' parameter in /admin/contactus.php. 3. Conduct thorough input validation and sanitization on all user-supplied data, especially parameters used in SQL queries. 4. Restrict access to the /admin directory via network segmentation and IP whitelisting to limit exposure. 5. Monitor logs for unusual database queries or error messages indicative of injection attempts. 6. Employ database least privilege principles to minimize the impact of any successful injection. 7. Consider deploying runtime application self-protection (RASP) solutions to detect and block injection attacks in real time. 8. Educate administrators and developers about secure coding practices to prevent similar vulnerabilities in future versions.