CVE-2025-7542 is a SQL Injection vulnerability identified in version 3.3 of the PHPGurukul User Registration & Login and User Management System. The vulnerability exists in the /admin/user-profile.php file, specifically through the manipulation of the 'uid' parameter. This parameter is used in SQL queries without proper sanitization or parameterization, allowing an attacker to inject malicious SQL code. The vulnerability can be exploited remotely without authentication or user interaction, increasing its risk profile. Successful exploitation could allow an attacker to read, modify, or delete data within the backend database, potentially compromising user credentials, personal information, and administrative data. The CVSS 4.0 score is 6.9 (medium severity), reflecting the network attack vector, low attack complexity, and no required privileges or user interaction. The impact on confidentiality, integrity, and availability is limited but present, as the vulnerability allows partial control over database operations. No known exploits are currently reported in the wild, but the exploit details have been publicly disclosed, increasing the likelihood of future attacks. No official patches or mitigations have been published by the vendor at the time of this report.

For European organizations using PHPGurukul User Registration & Login and User Management System version 3.3, this vulnerability poses a significant risk to the security of user data and administrative functions. Exploitation could lead to unauthorized access to sensitive user information, including personally identifiable information (PII), which is subject to strict data protection regulations such as GDPR. A breach could result in regulatory fines, reputational damage, and operational disruption. Additionally, attackers could manipulate user accounts or escalate privileges, potentially compromising broader system integrity. Given the remote and unauthenticated nature of the exploit, attackers could target exposed administrative interfaces over the internet, increasing the attack surface. Organizations in sectors with high regulatory scrutiny or handling sensitive user data, such as finance, healthcare, and government services, are particularly at risk. The lack of an official patch increases the urgency for interim mitigations to prevent exploitation.

1. Immediate mitigation should include restricting access to the /admin/user-profile.php endpoint via network controls such as IP whitelisting, VPN access, or web application firewalls (WAF) with custom rules to detect and block SQL injection patterns targeting the 'uid' parameter. 2. Implement input validation and sanitization on all user-supplied data, especially the 'uid' parameter, using prepared statements or parameterized queries to prevent injection. 3. Conduct a thorough code review of the application to identify and remediate other potential injection points. 4. Monitor application logs and database activity for unusual queries or access patterns indicative of exploitation attempts. 5. If feasible, isolate the affected system from the internet or untrusted networks until a vendor patch or official fix is available. 6. Engage with the vendor or community to obtain updates or patches and apply them promptly once released. 7. Educate development and security teams about secure coding practices to prevent similar vulnerabilities in future releases.