CVE-2026-1487 is an SQL Injection vulnerability classified under CWE-89 affecting the LatePoint – Calendar Booking Plugin for WordPress, specifically versions up to and including 5.2.7. The flaw exists in the JSON Import functionality, where the plugin fails to properly sanitize and validate user-supplied JSON data before incorporating it into SQL queries. This improper neutralization of special elements in SQL commands allows an attacker with Administrator-level privileges to inject arbitrary SQL code. Exploitation can be performed without user interaction but requires authenticated access with high privileges, which limits the attack surface to trusted users or compromised administrator accounts. The injected SQL can be used to extract sensitive information from the database using time-based blind SQL injection techniques, alter or delete data, or drop entire tables, severely compromising data confidentiality and integrity. The vulnerability has a CVSS 3.1 base score of 6.5, reflecting medium severity with network attack vector, low attack complexity, and no user interaction required. There are no known public exploits or patches available at the time of publication, increasing the urgency for organizations to implement compensating controls. The plugin is widely used in WordPress environments for managing appointments and events, making this vulnerability relevant to many small and medium-sized enterprises globally. The lack of input validation in a critical import feature highlights a common security oversight in plugin development.

The primary impact of CVE-2026-1487 is on the confidentiality and integrity of data stored in the WordPress database used by the LatePoint plugin. Successful exploitation allows attackers to extract sensitive customer and appointment data, modify booking information, or delete critical tables, potentially disrupting business operations. Although availability is not directly affected, data loss or corruption could indirectly cause service interruptions. Since exploitation requires administrator privileges, the threat is significant in scenarios where admin accounts are compromised or insider threats exist. Organizations relying on LatePoint for appointment management risk exposure of personal identifiable information (PII) and business-critical data, which could lead to regulatory compliance violations, reputational damage, and financial losses. The vulnerability's medium severity score reflects the balance between the high impact of successful exploitation and the requirement for privileged access. Without patches, the risk remains until mitigations are applied, especially in environments with weak access controls or compromised admin credentials.

To mitigate CVE-2026-1487, organizations should immediately restrict administrator access to trusted personnel and enforce strong authentication mechanisms such as multi-factor authentication (MFA) to reduce the risk of credential compromise. Review and monitor administrator account activity for suspicious behavior. Disable or restrict the JSON Import feature if it is not essential to operations. Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the LatePoint plugin endpoints. Regularly back up the WordPress database to enable recovery in case of data corruption or deletion. Until an official patch is released, consider applying custom input validation or sanitization on JSON import data at the application or database layer. Keep the WordPress core and all plugins updated and subscribe to vendor security advisories for timely patching once available. Conduct security audits and penetration testing focused on plugin functionalities to identify similar injection flaws. Finally, educate administrators about the risks of elevated privileges and the importance of secure plugin management.