CVE-2025-8809 is a critical SQL Injection vulnerability identified in version 1.0 of the code-projects Online Medicine Guide application. The flaw exists in an unspecified function within the /addelidetails.php file, where the 'del' parameter is improperly sanitized, allowing an attacker to inject malicious SQL code. This injection can be performed remotely without requiring any authentication or user interaction, making exploitation straightforward. The vulnerability enables attackers to manipulate backend database queries, potentially leading to unauthorized data access, data modification, or deletion. Given the nature of the affected application—a medicine guide—sensitive healthcare-related data could be at risk, including patient information or medical records if stored or referenced. The CVSS 4.0 score is 6.9, indicating a medium severity level, with network attack vector, low attack complexity, no privileges or user interaction needed, and limited impact on confidentiality, integrity, and availability. Although no known exploits are currently observed in the wild, the public disclosure of the exploit code increases the risk of imminent attacks. The absence of available patches or mitigations from the vendor further exacerbates the threat landscape for users of this software version.

For European organizations, especially those in the healthcare sector using the Online Medicine Guide 1.0, this vulnerability poses a significant risk. Exploitation could lead to unauthorized access to sensitive medical data, violating GDPR and other data protection regulations, resulting in legal penalties and reputational damage. The integrity of medical information could be compromised, potentially affecting patient care decisions. Additionally, attackers could disrupt availability by deleting or corrupting database entries, impacting operational continuity. Given the remote and unauthenticated nature of the exploit, attackers could target multiple organizations en masse, increasing the likelihood of widespread impact. European healthcare providers, research institutions, and pharmaceutical companies relying on this software or integrating it into their systems are particularly vulnerable. The medium severity rating suggests that while the impact is serious, the scope may be somewhat limited by the extent of the application's deployment and the specific data it handles.

Immediate mitigation steps include implementing strict input validation and parameterized queries or prepared statements in the /addelidetails.php script to prevent SQL injection. Organizations should conduct a thorough code review of the affected module and apply custom patches if vendor fixes are unavailable. Network-level protections such as Web Application Firewalls (WAFs) should be configured to detect and block SQL injection patterns targeting the 'del' parameter. Monitoring and logging database queries for anomalous activity can help in early detection of exploitation attempts. Organizations should also isolate the affected application from critical backend systems until the vulnerability is remediated. Regular backups of the database should be maintained to enable recovery in case of data tampering. Finally, organizations should track vendor communications for official patches and apply them promptly once released.