CVE-2025-11416 identifies a SQL injection vulnerability in PHPGurukul Beauty Parlour Management System version 1.1, located in the /admin/invoices.php script. The vulnerability arises from improper sanitization of the 'delid' parameter, which is used in SQL queries without adequate validation or parameterization. An attacker can remotely send crafted requests manipulating this parameter to inject arbitrary SQL commands. This can lead to unauthorized data access, modification, or deletion within the backend database. The vulnerability requires no authentication or user interaction, making it highly accessible to remote attackers. The CVSS 4.0 score of 6.9 reflects a medium severity, considering the network attack vector, low complexity, and no privileges required. The impact on confidentiality, integrity, and availability is low to moderate but significant for the affected systems. No official patches have been released yet, and while no active exploitation has been reported, a public exploit is available, increasing the likelihood of future attacks. The vulnerability primarily threatens the backend database integrity and confidentiality of beauty parlour management data, including invoices and possibly customer information. Organizations using this software version should prioritize mitigation to prevent potential data breaches or service disruptions.

For European organizations, this vulnerability poses a risk to the confidentiality and integrity of sensitive business and customer data managed by the Beauty Parlour Management System. Exploitation could lead to unauthorized disclosure of financial records, customer details, and operational data, potentially resulting in reputational damage and regulatory non-compliance under GDPR. Data manipulation could disrupt business operations, causing financial losses and service interruptions. Small and medium enterprises in the beauty and wellness sector, which often use niche management software like PHPGurukul, are particularly vulnerable due to limited cybersecurity resources. The remote and unauthenticated nature of the exploit increases the attack surface, making it easier for cybercriminals to target these organizations. Additionally, the availability of a public exploit raises the risk of opportunistic attacks. The impact extends beyond individual businesses, as compromised systems could be leveraged for broader attacks or data harvesting campaigns targeting European consumers.

Since no official patches are currently available, European organizations should implement immediate compensating controls. These include: 1) Applying strict input validation and sanitization on the 'delid' parameter to prevent malicious SQL code injection; 2) Employing prepared statements or parameterized queries in the application code to eliminate direct SQL concatenation; 3) Restricting access to the /admin/invoices.php endpoint via network-level controls such as IP whitelisting or VPN access to limit exposure; 4) Monitoring web server and database logs for suspicious activity related to the 'delid' parameter, including anomalous SQL errors or unexpected query patterns; 5) Conducting code reviews and security testing to identify and remediate similar injection points; 6) Planning and prioritizing an upgrade to a patched version once available or considering alternative management solutions with better security posture; 7) Educating staff about the risks and signs of exploitation to enhance detection and response capabilities. These targeted actions go beyond generic advice by focusing on the specific vulnerable parameter and operational context.