CVE-2025-4300 is a SQL Injection vulnerability identified in version 1.0 of the itsourcecode Content Management System (CMS). The vulnerability resides in the /search_list.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 exploitation without requiring authentication or user interaction, making it accessible to any attacker with network access to the vulnerable CMS instance. The vulnerability is classified with a CVSS 4.0 base score of 6.9, indicating a medium severity level. The vector metrics highlight that the attack can be launched remotely (AV:N), requires no privileges (PR:N), no user interaction (UI:N), and no scope change (S:N). The impact on confidentiality, integrity, and availability is limited (VC:L, VI:L, VA:L), suggesting that while data exposure or modification is possible, it may not be extensive or system-wide. No official patches or exploit code in the wild have been reported yet. However, the public disclosure of the vulnerability increases the risk of exploitation attempts. SQL Injection vulnerabilities typically allow attackers to read sensitive data, modify or delete database contents, and in some cases, escalate to remote code execution depending on the backend database and application architecture. Given the vulnerability is in a CMS, which often stores website content and user data, successful exploitation could lead to data breaches, defacement, or disruption of web services.

For European organizations using itsourcecode CMS version 1.0, this vulnerability poses a tangible risk of unauthorized data access and potential data integrity compromise. Since CMS platforms often manage website content and user information, exploitation could lead to leakage of personal data, violating GDPR regulations and resulting in legal and financial penalties. Additionally, attackers could alter website content, damaging organizational reputation and trust. The remote and unauthenticated nature of the exploit increases the risk of automated attacks or mass scanning campaigns targeting vulnerable installations. Disruption of web services could impact business continuity, especially for organizations relying on their websites for customer engagement or e-commerce. The medium severity rating suggests the impact is significant but may not lead to full system compromise without additional vulnerabilities or misconfigurations. Nonetheless, the exposure of sensitive data or defacement incidents could have severe operational and reputational consequences for affected European entities.

1. Immediate action should be to upgrade the itsourcecode CMS to a patched version once available from the vendor. If no patch is currently available, organizations should implement input validation and parameterized queries in the /search_list.php script to sanitize the 'Search' parameter and prevent SQL injection. 2. Employ Web Application Firewalls (WAFs) with specific rules to detect and block SQL injection payloads targeting the vulnerable parameter. 3. Conduct thorough code reviews and security testing on the CMS, focusing on all user input handling to identify and remediate similar injection flaws. 4. Restrict database user permissions to the minimum necessary, limiting the impact of any successful injection. 5. Monitor web server and application logs for suspicious query patterns or repeated failed attempts to exploit the 'Search' parameter. 6. Isolate vulnerable CMS instances from critical internal networks to reduce lateral movement risks. 7. Educate development and IT teams on secure coding practices and the importance of timely patching. 8. Consider temporary disabling or restricting access to the search functionality if feasible until a fix is applied.