CVE-2025-48091 is an SQL Injection vulnerability found in the Alexander AnyComment product, affecting versions up to and including 0.3.6. The vulnerability arises from improper neutralization of special elements in SQL commands, allowing attackers to inject malicious SQL code. This flaw can be exploited remotely over the network without user interaction but requires low-level privileges (PR:L). The vulnerability has a CVSS 3.1 base score of 8.5, indicating high severity, with an attack vector of network (AV:N), low attack complexity (AC:L), and no user interaction (UI:N). The scope is changed (S:C), meaning the vulnerability affects resources beyond the initially vulnerable component. The impact on confidentiality is high (C:H), allowing attackers to read sensitive data from the database, while integrity impact is low (I:L), and availability is not affected (A:N). Although no known exploits are currently reported in the wild, the vulnerability poses a significant risk due to the ease of exploitation and potential data exposure. The vulnerability was reserved in May 2025 and published in October 2025. The lack of available patches at the time of reporting necessitates immediate attention to mitigation strategies. The vulnerability is particularly concerning for web applications relying on AnyComment for user-generated content, as attackers could manipulate SQL queries to extract or alter data, potentially leading to data breaches or unauthorized data disclosure.

For European organizations, this vulnerability could lead to unauthorized disclosure of sensitive information stored in databases accessed by the AnyComment system. This includes user data, internal comments, or other confidential information, which could result in reputational damage, regulatory penalties under GDPR, and operational disruptions. The partial integrity impact means attackers might also alter some data, potentially undermining trust in the system's content. Since the vulnerability does not affect availability, denial-of-service is less of a concern. However, the confidentiality breach alone is critical, especially for organizations handling personal or sensitive data. The lack of required user interaction and the ability to exploit remotely increase the risk of widespread attacks if the vulnerability is not addressed promptly. European entities in sectors such as finance, healthcare, government, and media that use AnyComment are particularly vulnerable to data theft or manipulation. Additionally, the cross-component scope change suggests that the impact could extend beyond the immediate application, potentially affecting integrated systems or databases.

1. Monitor Alexander’s official channels for patches addressing CVE-2025-48091 and apply them immediately upon release. 2. Until patches are available, implement strict input validation and sanitization on all user inputs processed by AnyComment to prevent injection of malicious SQL commands. 3. Deploy Web Application Firewalls (WAFs) with rules specifically designed to detect and block SQL Injection attempts targeting AnyComment endpoints. 4. Conduct thorough code reviews and penetration testing focused on SQL Injection vectors within AnyComment integrations. 5. Restrict database user privileges used by AnyComment to the minimum necessary, limiting the potential damage from successful exploitation. 6. Enable detailed logging and monitoring to detect suspicious activities indicative of exploitation attempts. 7. Educate developers and administrators about secure coding practices and the risks of SQL Injection. 8. Consider isolating AnyComment components and databases in segmented network zones to reduce lateral movement if compromised.