CVE-2025-5226 is a SQL Injection vulnerability identified in PHPGurukul Small CRM version 3.0, specifically within the /admin/change-password.php file. The vulnerability arises from improper sanitization or validation of the 'oldpass' parameter, which is used in SQL queries without adequate protection against injection attacks. An attacker can remotely exploit this flaw without any authentication or user interaction, by manipulating the 'oldpass' argument to inject malicious SQL code. This can lead to unauthorized access to the underlying database, allowing attackers to read, modify, or delete sensitive data, potentially compromising the confidentiality, integrity, and availability of the CRM system. The vulnerability is classified with a CVSS 4.0 base score of 6.9, indicating a medium severity level, primarily due to the limited scope of impact (confidentiality, integrity, and availability are low to limited) and the lack of known exploits in the wild. However, the ease of exploitation (no authentication or user interaction required) and the critical nature of CRM data make this vulnerability significant. The description also notes that other parameters might be affected, suggesting a broader attack surface within the application. No official patches or mitigations have been linked yet, increasing the urgency for organizations to implement compensating controls.

For European organizations using PHPGurukul Small CRM 3.0, this vulnerability poses a significant risk to business operations and data security. CRM systems typically store sensitive customer data, including personal identification information, contact details, and potentially financial data. Exploitation could lead to data breaches, violating GDPR and other data protection regulations, resulting in legal penalties and reputational damage. Unauthorized database access could also allow attackers to alter or delete critical business data, disrupting operations and causing financial losses. Since the vulnerability can be exploited remotely without authentication, attackers could target exposed CRM instances over the internet, increasing the risk of widespread compromise. The medium CVSS score might underestimate the real-world impact, especially if the CRM is integrated with other business-critical systems. Additionally, the lack of known exploits currently does not preclude future active exploitation, so proactive measures are essential.

1. Immediate mitigation should include restricting access to the /admin/change-password.php endpoint via network controls such as IP whitelisting or VPN access to limit exposure. 2. Implement Web Application Firewall (WAF) rules specifically designed to detect and block SQL injection patterns targeting the 'oldpass' parameter and other input fields. 3. Conduct a thorough code review and apply proper input validation and parameterized queries or prepared statements in the affected code to eliminate SQL injection risks. 4. If possible, upgrade to a patched version of PHPGurukul Small CRM once available; meanwhile, consider disabling the vulnerable functionality if feasible. 5. Monitor logs for unusual database queries or failed login attempts that may indicate exploitation attempts. 6. Educate administrators about the risk and ensure strong password policies and multi-factor authentication to reduce the impact of potential breaches. 7. Regularly back up CRM data and verify backup integrity to enable recovery in case of data tampering or loss.