CVE-2025-49323 is a high-severity SQL Injection vulnerability (CWE-89) affecting the Themefic Hydra Booking plugin, versions up to 1.1.10. This vulnerability arises from improper neutralization of special elements used in SQL commands, allowing an attacker with at least low privileges (PR:L) and no user interaction (UI:N) to inject malicious SQL code remotely over the network (AV:N). The vulnerability impacts confidentiality significantly (C:H), with no direct impact on integrity (I:N) and only a low impact on availability (A:L). The scope is changed (S:C), indicating that exploitation can affect resources beyond the initially vulnerable component. Since Hydra Booking is a WordPress booking plugin, the vulnerability likely targets the backend database queries used to manage booking data. Exploitation could allow attackers to extract sensitive data from the database, such as user information, booking details, or other confidential records. Although no known exploits are currently in the wild, the high CVSS score (8.5) reflects the ease of exploitation combined with the potential for significant data exposure. The lack of available patches at the time of publication increases risk for organizations using affected versions. The vulnerability requires at least some level of authentication, which may limit exposure to external unauthenticated attackers but still poses a serious threat if credentials are compromised or if the plugin is used in environments with weak access controls.

For European organizations using the Themefic Hydra Booking plugin, this vulnerability poses a substantial risk to the confidentiality of sensitive customer and business data. Booking systems often contain personally identifiable information (PII), payment details, and scheduling data critical to business operations. Exploitation could lead to data breaches, regulatory non-compliance (e.g., GDPR violations), reputational damage, and potential financial penalties. The partial requirement for authentication means insider threats or compromised accounts could be leveraged to exploit the vulnerability. Additionally, the scope change indicates that attackers might escalate the impact beyond the plugin itself, potentially accessing other parts of the database or connected systems. This could disrupt business continuity and erode customer trust. Given the widespread use of WordPress and booking plugins in the European hospitality, travel, and event sectors, the vulnerability could affect a broad range of organizations, from small businesses to large enterprises.

1. Immediate action should be to upgrade the Themefic Hydra Booking plugin to a version that addresses this vulnerability once available. Since no patch links are currently provided, organizations should monitor vendor announcements closely. 2. Implement strict access controls and enforce strong authentication mechanisms to limit the risk posed by the PR:L requirement. 3. Conduct thorough input validation and sanitization on all user-supplied data interacting with the booking system, employing parameterized queries or prepared statements to prevent SQL injection. 4. Employ Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection attempts targeting the plugin’s endpoints. 5. Regularly audit and monitor database logs and application behavior for suspicious activities indicative of exploitation attempts. 6. Consider isolating the booking system database or using least privilege database accounts to minimize the blast radius of a successful injection. 7. Educate administrators and users about the risks and signs of compromise related to this vulnerability. 8. As a temporary mitigation, if upgrading is not immediately possible, consider disabling or restricting access to the vulnerable plugin functionalities until a patch is available.