CVE-2025-11053 is a SQL Injection vulnerability identified in PHPGurukul Small CRM version 4.0, specifically in the /forgot-password.php file. The vulnerability arises from improper sanitization or validation of the 'email' parameter, which is susceptible to malicious input manipulation. An attacker can remotely exploit this flaw by injecting crafted SQL commands through the email argument, potentially allowing unauthorized access to the underlying database. This can lead to unauthorized data disclosure, data modification, or even complete compromise of the CRM's backend database. The vulnerability does not require authentication or user interaction, making it easier to exploit. The CVSS 4.0 base score is 6.9 (medium severity), reflecting the network attack vector, low attack complexity, no privileges or user interaction required, and limited impact on confidentiality, integrity, and availability. Although no known exploits in the wild have been reported yet, the public availability of exploit code increases the risk of exploitation. The lack of an official patch or mitigation guidance from the vendor at this time further elevates the threat. Small CRM systems like PHPGurukul's are often used by small and medium enterprises to manage customer data, making the exposure of sensitive customer information and business data a significant concern.

For European organizations using PHPGurukul Small CRM 4.0, this vulnerability poses a tangible risk of data breaches involving customer and business information. Exploitation could lead to unauthorized access to personal data, violating GDPR requirements and potentially resulting in regulatory penalties and reputational damage. The ability to manipulate the database remotely without authentication increases the risk of widespread exploitation, especially in organizations with internet-facing CRM instances. Additionally, attackers could alter or delete critical business data, disrupting operations and causing financial losses. Given the medium severity, the impact is significant but not catastrophic; however, the ease of exploitation and public availability of exploits could lead to rapid compromise if unaddressed. Organizations in sectors with high data sensitivity, such as finance, healthcare, and retail, may face elevated risks. Furthermore, the breach of CRM data could facilitate further targeted attacks like phishing or social engineering against European customers and employees.

Immediate mitigation should focus on restricting access to the /forgot-password.php endpoint by implementing web application firewalls (WAFs) with rules to detect and block SQL injection patterns targeting the email parameter. Organizations should conduct thorough input validation and sanitization on all user-supplied data, especially the email field, using parameterized queries or prepared statements to prevent injection. Until an official patch is released, consider disabling the password reset functionality or restricting it to authenticated users only. Regularly monitor logs for suspicious activity related to the vulnerable endpoint. Additionally, organizations should perform a security audit of their CRM deployment and related infrastructure to identify and remediate other potential vulnerabilities. Implementing network segmentation to isolate the CRM system and limiting database user privileges can reduce the impact of a successful exploit. Finally, organizations should prepare incident response plans to quickly address any exploitation attempts and notify affected individuals in compliance with GDPR.