CVE-2025-13485 identifies a SQL injection vulnerability in itsourcecode Online File Management System version 1.0, specifically within the /ajax.php?action=login endpoint. The vulnerability arises from improper sanitization of the Username parameter, allowing an attacker to inject arbitrary SQL code remotely without requiring authentication or user interaction. This flaw enables attackers to manipulate backend database queries, potentially leading to unauthorized data access, data modification, or denial of service conditions. 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 partial impact on confidentiality, integrity, and availability. Although no confirmed exploits in the wild have been reported, the public release of exploit code increases the likelihood of exploitation attempts. The vulnerability affects only version 1.0 of the product, which is an online file management system often used to store and manage sensitive documents. The lack of vendor patches or official remediation guidance at this time necessitates immediate defensive measures by users. The vulnerability’s exploitation could allow attackers to extract sensitive information, alter or delete files, or disrupt service availability, posing significant risks to organizations relying on this system for file management.

For European organizations, the exploitation of CVE-2025-13485 could result in unauthorized access to sensitive file management data, leading to data breaches involving personal, financial, or intellectual property information. The integrity of stored files could be compromised, enabling attackers to alter or delete critical documents. Availability of the file management service could be disrupted, impacting business operations and productivity. Organizations in sectors such as finance, healthcare, legal, and government that rely on secure file management systems are particularly vulnerable. The remote and unauthenticated nature of the attack vector increases the risk of widespread exploitation, especially in environments where the vulnerable software is exposed to the internet. The public availability of exploit code further elevates the threat, potentially attracting opportunistic attackers and automated scanning tools. Failure to address this vulnerability promptly could lead to regulatory non-compliance under GDPR due to data breaches, resulting in financial penalties and reputational damage.

1. Immediately restrict external access to the /ajax.php?action=login endpoint through network controls such as firewalls or web application firewalls (WAFs) to limit exposure. 2. Implement input validation and sanitization on the Username parameter, ensuring that only expected characters are accepted and rejecting or escaping any SQL control characters. 3. Employ parameterized queries or prepared statements in the backend code to prevent SQL injection attacks. 4. Monitor logs for suspicious activity targeting the login endpoint, including unusual query patterns or repeated failed login attempts. 5. If possible, isolate the vulnerable system within a segmented network zone to reduce lateral movement risk. 6. Engage with the vendor or community to obtain patches or updates addressing this vulnerability; if unavailable, consider migrating to alternative secure file management solutions. 7. Conduct regular security assessments and penetration testing focused on injection flaws. 8. Educate IT and security teams about this vulnerability and ensure incident response plans include steps for SQL injection incidents. 9. Apply strict access controls and multi-factor authentication on administrative interfaces to reduce risk if the vulnerability is exploited.