CVE-2025-4266 is a SQL Injection vulnerability identified in version 1.0 of the PHPGurukul Notice Board System, specifically affecting the /bwdates-reports-details.php script when processing the 'fromdate' and 'tomdate' parameters. SQL Injection vulnerabilities occur when user-supplied input is improperly sanitized and directly incorporated into SQL queries, allowing attackers to manipulate the database queries executed by the application. In this case, the vulnerability allows an unauthenticated remote attacker to inject malicious SQL code via the date parameters, potentially leading to unauthorized data access or modification. The vulnerability has been publicly disclosed, but no known exploits are currently reported in the wild. The CVSS 4.0 base score is 6.9, categorized as medium severity, reflecting the network attack vector, no required privileges or user interaction, and limited impact on confidentiality, integrity, and availability. The vulnerability does not require authentication or user interaction, making it easier to exploit remotely. However, the impact is somewhat limited, possibly due to partial sanitization or constrained query scope. The lack of available patches or mitigations from the vendor at this time increases the risk for organizations using this software version. Since the affected software is a notice board system, it is likely used in organizational internal communications or public announcements, where database integrity and confidentiality are important. Exploitation could lead to data leakage, unauthorized data manipulation, or disruption of notice board functionality.

For European organizations using PHPGurukul Notice Board System 1.0, this vulnerability poses a risk of unauthorized data access or modification, potentially exposing sensitive internal communications or organizational announcements. This could result in reputational damage, compliance violations (especially under GDPR if personal data is involved), and operational disruptions. Since the attack can be launched remotely without authentication, attackers could exploit this vulnerability to gain foothold or escalate privileges within the affected environment. The medium severity rating suggests that while the impact is not catastrophic, it is significant enough to warrant immediate attention. Organizations in sectors with strict data protection requirements, such as government, healthcare, education, and finance, may face higher risks if this system is integrated into their workflows. Additionally, the public disclosure of the vulnerability increases the likelihood of exploitation attempts, emphasizing the need for timely mitigation.

1. Immediate mitigation should include implementing input validation and parameterized queries or prepared statements in the affected PHP script to prevent SQL injection. 2. If source code modification is not feasible immediately, deploying a Web Application Firewall (WAF) with rules to detect and block SQL injection patterns targeting the 'fromdate' and 'tomdate' parameters can reduce risk. 3. Conduct a thorough audit of all user input handling in the Notice Board System to identify and remediate similar injection points. 4. Monitor logs for suspicious activities related to the vulnerable endpoint, including unusual query patterns or repeated access attempts. 5. Restrict network access to the application to trusted IPs where possible, limiting exposure. 6. Engage with the vendor or community to obtain or develop official patches or updates addressing this vulnerability. 7. Educate development and security teams about secure coding practices to prevent future injection flaws. 8. Regularly back up the database and ensure recovery procedures are tested to mitigate potential data loss or corruption.