CVE-2024-38692 in Spiffy Calendar Plugin
Summary
by MITRE • 07/22/2024
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Spiffy Plugins Spiffy Calendar allows SQL Injection.This issue affects Spiffy Calendar: from n/a through 4.9.11.
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Analysis
by VulDB Data Team • 08/15/2024
The vulnerability identified as CVE-2024-38692 represents a critical SQL injection flaw within the Spiffy Calendar plugin for WordPress, specifically affecting versions ranging from the initial release through 4.9.11. This weakness stems from inadequate input validation and sanitization mechanisms that fail to properly neutralize special elements within SQL commands, creating an avenue for malicious actors to manipulate database queries. The vulnerability manifests when user-supplied data is directly incorporated into SQL statements without proper escaping or parameterization, allowing attackers to inject arbitrary SQL code that can be executed by the database engine.
The technical nature of this vulnerability aligns with CWE-89, which specifically addresses SQL injection weaknesses where untrusted data is used in database queries without proper sanitization. This flaw operates at the application level within the WordPress ecosystem, leveraging the plugin's database interaction mechanisms to execute unauthorized commands. Attackers can exploit this vulnerability by crafting malicious inputs that bypass the plugin's input validation, potentially enabling them to extract sensitive data, modify database records, or even escalate privileges within the affected system. The vulnerability's impact is amplified by the fact that it affects the core calendar functionality, which often processes user-generated content and external data sources.
Operationally, this SQL injection vulnerability presents significant risks to organizations relying on Spiffy Calendar for event management, scheduling, and calendar integration. The attack surface extends beyond simple data theft to include potential complete system compromise, especially if the database user has elevated privileges. An attacker could leverage this vulnerability to access sensitive information such as user credentials, personal calendar entries, event details, and potentially other system data stored within the same database. The vulnerability's persistence across multiple versions suggests a fundamental flaw in the plugin's architecture rather than a one-time coding error, indicating that organizations running any affected version remain at risk until proper mitigation is implemented.
Mitigation strategies should prioritize immediate patching to version 4.9.12 or later, which contains the necessary security fixes. Organizations should also implement input validation at multiple layers, ensuring that all user-supplied data undergoes proper sanitization before database interaction. The implementation of prepared statements or parameterized queries represents the most effective defensive measure against SQL injection attacks, as these approaches separate SQL code from data, preventing malicious input from altering query structure. Additionally, database access should be restricted to minimum required privileges, and comprehensive monitoring should be implemented to detect anomalous database activity that might indicate exploitation attempts. Network-level protections such as web application firewalls can provide additional defense-in-depth, though they should not be considered a replacement for proper code-level fixes. The vulnerability serves as a reminder of the critical importance of regular security assessments and maintaining up-to-date software components within WordPress environments.