CVE-2025-52664 is a critical SQL injection vulnerability identified in Revive Adserver version 6.0.0, an open-source ad serving platform widely used for managing and delivering online advertisements. The vulnerability arises due to insufficient sanitization of user-supplied input in SQL queries executed by the application. Specifically, authenticated users can send specially crafted payloads that manipulate the underlying SQL commands, enabling unauthorized access to or modification of the database. The flaw does not require additional user interaction beyond authentication, increasing its exploitability. The CVSS v3.0 score of 8.8 reflects the high impact on confidentiality, integrity, and availability, with network attack vector, low attack complexity, and privileges required but no user interaction needed. Exploitation could allow attackers to extract sensitive data such as user information, campaign details, or financial records, alter ad delivery configurations, or disrupt ad services, causing significant operational and reputational damage. Although no public exploits have been reported yet, the vulnerability's nature and impact make it a prime target for attackers once exploit code becomes available. The lack of available patches at the time of disclosure necessitates immediate risk mitigation by affected organizations.

For European organizations, the impact of CVE-2025-52664 can be substantial, especially for those relying on Revive Adserver for digital advertising operations. Confidentiality breaches could expose sensitive customer data, campaign strategies, and financial information, potentially violating GDPR and other data protection regulations, leading to legal and financial penalties. Integrity compromises may allow attackers to manipulate ad content or delivery, damaging brand reputation and trust. Availability disruptions could interrupt advertising services, resulting in revenue loss and operational setbacks. Given the interconnected nature of digital advertising ecosystems, exploitation could also facilitate lateral movement to other internal systems. The high CVSS score indicates that the vulnerability is both exploitable and impactful, necessitating urgent attention. Organizations in sectors such as media, marketing, e-commerce, and any entity using Revive Adserver are at risk. The potential regulatory consequences in Europe amplify the threat's seriousness.

1. Immediate mitigation involves restricting access to the Revive Adserver interface to trusted users and networks only, using network segmentation and firewall rules. 2. Enforce strong authentication and role-based access controls to limit the number of users with login privileges. 3. Monitor database logs and application logs for unusual SQL queries or error messages indicative of injection attempts. 4. Implement Web Application Firewall (WAF) rules specifically targeting SQL injection patterns relevant to Revive Adserver. 5. Regularly back up the database and application data to enable recovery in case of compromise. 6. Engage with the vendor or community to obtain and apply patches or updates as soon as they are released. 7. Conduct security audits and code reviews focusing on input validation and sanitization practices within the application. 8. Educate administrators and users about the risks of SQL injection and the importance of secure credential management. These steps go beyond generic advice by emphasizing network-level controls, monitoring, and proactive engagement with vendor updates.