CVE-2024-30240 in Calendarista Plugin
Summary
by MITRE • 03/28/2024
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Typps Calendarista.This issue affects Calendarista: from n/a through 15.5.7.
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Analysis
by VulDB Data Team • 03/28/2024
The vulnerability CVE-2024-30240 represents a critical SQL injection flaw in Typps Calendarista calendar application that allows attackers to manipulate database queries through improper neutralization of special elements in SQL commands. This weakness falls under the well-established CWE-89 category, which specifically addresses SQL injection vulnerabilities where user-supplied input is not properly sanitized before being incorporated into database queries. The vulnerability exists within Calendarista versions ranging from an unspecified initial version through 15.5.7, indicating a long-standing issue that has persisted across multiple releases.
The technical exploitation of this vulnerability occurs when Calendarista fails to adequately validate or escape user input that is subsequently used in SQL command construction. Attackers can craft malicious input that, when processed by the application, gets interpreted as part of the SQL command rather than as literal data, potentially allowing for unauthorized database access, data manipulation, or even complete database compromise. This type of injection attack typically leverages special characters such as single quotes, semicolons, or comment markers that are fundamental to SQL syntax and can alter the intended execution flow of database queries.
The operational impact of this vulnerability extends beyond simple data theft, as it can enable attackers to perform a wide range of malicious activities including unauthorized data access, data modification, or even privilege escalation within the database environment. According to ATT&CK framework category T1190, this vulnerability represents a technique for exploiting weaknesses in input validation and sanitization, which falls under the broader category of exploitation for privilege escalation. The vulnerability affects calendar applications that handle user data through database interactions, making it particularly dangerous in environments where sensitive personal or organizational calendar information is stored.
Mitigation strategies should focus on implementing robust input validation and parameterized query construction to prevent user input from being interpreted as SQL code. The application should employ prepared statements or parameterized queries that separate SQL command structure from data values, ensuring that user input is always treated as literal data rather than executable code. Additionally, implementing proper access controls, input sanitization, and regular security updates can significantly reduce the risk of exploitation. Organizations should also consider implementing web application firewalls and database activity monitoring to detect and prevent potential exploitation attempts. The vulnerability demonstrates the critical importance of following secure coding practices and adhering to established security frameworks such as OWASP Top Ten to prevent injection vulnerabilities that can lead to complete system compromise.