CVE-2025-11309 is a SQL injection vulnerability identified in version 1.0 of the Tipray 厦门天锐科技股份有限公司 Data Leakage Prevention System (天锐数据泄露防护系统). The vulnerability resides in the doFilter function within the findDeptPage.do endpoint, specifically through manipulation of the 'sort' parameter. This parameter is improperly sanitized, allowing an attacker to inject arbitrary SQL commands remotely without requiring authentication or user interaction. The flaw enables attackers to execute unauthorized database queries, potentially leading to data leakage, unauthorized data modification, or deletion. The vendor was notified early but has not issued any response or patch, and public exploit code has been released, increasing the likelihood of exploitation. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), and partial impacts on confidentiality, integrity, and availability (VC:L, VI:L, VA:L). The vulnerability affects only version 1.0 of the product, which is used primarily in environments requiring data leakage prevention. The absence of vendor response and patch availability necessitates immediate defensive actions by users. The vulnerability's exploitation could compromise sensitive data protected by the system, undermining organizational security controls and potentially causing operational disruptions.

For European organizations, the exploitation of CVE-2025-11309 could result in unauthorized access to sensitive data managed by the Tipray Data Leakage Prevention System, undermining confidentiality and potentially exposing intellectual property, personal data, or strategic information. Integrity of data could be compromised through unauthorized modifications or deletions, affecting trustworthiness of security controls. Availability may also be impacted if attackers disrupt database operations. Organizations in regulated sectors such as finance, healthcare, and critical infrastructure could face compliance violations and reputational damage. The remote, unauthenticated nature of the exploit increases risk, especially in environments where the affected product is exposed to untrusted networks. Given the vendor's lack of response and absence of patches, organizations must assume a heightened threat level and implement compensating controls to prevent exploitation and detect potential attacks. The public availability of exploit code further elevates the risk of opportunistic attacks targeting European entities using this product.

1. Immediately restrict network access to the affected findDeptPage.do endpoint by implementing firewall rules or network segmentation to limit exposure to trusted internal networks only. 2. Deploy Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection attempts targeting the 'sort' parameter. 3. Conduct thorough input validation and sanitization on all user-supplied parameters, especially 'sort', to prevent injection attacks; if modifying the product code is possible, apply parameterized queries or prepared statements. 4. Monitor logs and network traffic for unusual database queries or access patterns indicative of exploitation attempts. 5. Implement strict database user permissions to minimize the impact of potential SQL injection by limiting the database account's privileges used by the application. 6. Engage with the vendor for updates and patches, and subscribe to vulnerability advisories for timely information. 7. Consider deploying intrusion detection/prevention systems (IDS/IPS) tuned to detect SQL injection signatures. 8. Prepare incident response plans specific to data leakage prevention system compromise scenarios. 9. If feasible, isolate or replace the affected product with alternative solutions until a patch is available. 10. Educate security teams about this vulnerability and ensure rapid response capabilities.