CVE-2025-10603 is a SQL Injection vulnerability identified in version 1.0 of the PHPGurukul Online Discussion Forum software. The vulnerability exists in the /admin/admin_forum/search_result.php file, specifically in the handling of the 'Search' parameter. An attacker can manipulate this parameter to inject malicious SQL code, which the backend database executes. This flaw allows remote attackers to execute arbitrary SQL commands without requiring authentication or user interaction. The vulnerability is exploitable over the network (AV:N) with low attack complexity (AC:L), no privileges required (PR:N), and no user interaction needed (UI:N). The impact on confidentiality, integrity, and availability is limited but present (VC:L, VI:L, VA:L), indicating partial compromise potential. The vulnerability does not affect system scope beyond the application (SC:N), and there is no indication of privilege escalation or system-level access. The CVSS 4.0 base score is 6.9, categorizing it as a medium severity issue. Although no public exploits have been observed in the wild yet, the vulnerability has been publicly disclosed, increasing the risk of exploitation. The lack of available patches or updates from the vendor at this time heightens the urgency for mitigation. SQL Injection vulnerabilities can lead to unauthorized data access, data modification, or deletion, and in some cases, can be leveraged to execute commands on the underlying server, depending on the database configuration and environment. Given the affected version is 1.0, it is likely an early or initial release of the software, which may be in use by smaller or niche communities relying on PHPGurukul's forum solution.

For European organizations using PHPGurukul Online Discussion Forum 1.0, this vulnerability poses a risk of unauthorized access to sensitive discussion data, including user credentials, private messages, or administrative information. Exploitation could lead to data leakage, defacement of forum content, or disruption of forum services, impacting organizational communication and reputation. In sectors where forums are used for critical collaboration or customer support, such as government agencies, educational institutions, or healthcare providers, the impact could extend to compliance violations (e.g., GDPR) and loss of trust. The remote and unauthenticated nature of the exploit increases the risk, especially for publicly accessible forums. Although the severity is medium, the absence of patches and the public disclosure mean that attackers could develop exploits rapidly, increasing the threat landscape. Organizations relying on this software should consider the potential for lateral movement if the forum is integrated with other internal systems or shares credentials with other services.

1. Immediate mitigation should include restricting access to the /admin/admin_forum/search_result.php endpoint via network controls such as IP whitelisting or VPN access to limit exposure to trusted administrators only. 2. Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the 'Search' parameter. 3. If possible, disable or remove the vulnerable search functionality until a patch or update is available. 4. Conduct a thorough audit of forum logs to detect any suspicious activity or attempted exploitation. 5. Encourage the vendor or community maintaining PHPGurukul to release a security update addressing this vulnerability. 6. Consider migrating to alternative, actively maintained forum software with robust security practices if continued use of PHPGurukul is not feasible. 7. Educate administrators about monitoring and incident response procedures related to SQL injection attacks. 8. Regularly back up forum data to enable recovery in case of data corruption or deletion resulting from exploitation.