CVE-2026-109901 in CP Multi View Event Calendar Plugin
Summary
by MITRE • 10/14/2026
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Codepeople CP Multi View Event Calendar cp-multi-view-calendar allows SQL Injection.This issue affects CP Multi View Event Calendar : from n/a through 1.4.41.
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Analysis
by VulDB Data Team • 10/14/2026
The identified security flaw represents a classic instance of Improper Neutralization of Special Elements used in an SQL Command, commonly referred to as SQL injection. This vulnerability exists within the Codepeople CP Multi View Event Calendar plugin for WordPress, specifically affecting versions ranging from n/a through 1.4.41. The core technical issue stems from insufficient input validation and sanitization mechanisms when processing user-supplied data that is subsequently incorporated into database queries without proper escaping or parameterization. In a typical web application architecture utilizing this plugin, the software likely accepts parameters related to event filtering, date ranges, or category selections directly from HTTP requests. When these inputs are concatenated directly into SQL statements rather than being passed through prepared statements with bound variables, an attacker can manipulate the structure of the query itself.
From a technical perspective, the vulnerability allows for arbitrary code execution at the database level by injecting malicious SQL syntax. An adversary could exploit this weakness to bypass authentication mechanisms, extract sensitive data from the underlying database such as user credentials and personal information, modify or delete existing records, or potentially escalate privileges depending on the database server's configuration. The lack of strict type checking allows for complex injection payloads that can chain multiple operations within a single request vector. This is particularly dangerous in WordPress environments where the database often contains administrative hashes and site-specific configurations that are highly valuable to threat actors seeking persistent access or data exfiltration capabilities.
The operational impact of this vulnerability extends beyond immediate data compromise. Successful exploitation could lead to complete server takeover if the database user has elevated privileges, such as FILE permissions on MySQL/MariaDB systems which allow writing files to arbitrary locations. This can facilitate further lateral movement within a compromised network infrastructure. Furthermore, the integrity of the event calendar application is severely undermined, leading to potential data corruption and loss of service availability for end-users relying on the plugin for scheduling and organization purposes. The presence of this flaw indicates a significant gap in secure coding practices during the development lifecycle of the affected software versions.
In terms of industry standard classifications, this vulnerability aligns with CWE-89: Improper Neutralization of Special Elements used in an SQL Command. It also maps to MITRE ATT&CK techniques related to Database Query Injection and potentially Data Exfiltration via Common Carriers if exfiltrated data is transmitted externally. Security professionals should treat this as a high-severity issue requiring immediate remediation due to the widespread use of WordPress plugins and the ease with which automated scanning tools can detect and exploit such injection points.
Mitigation strategies must prioritize upgrading the CP Multi View Event Calendar plugin to version 1.4.42 or later, where the developers have presumably implemented proper input sanitization and prepared statement usage for all database interactions. In environments where immediate patching is not feasible due to compatibility constraints, temporary mitigations should include implementing a Web Application Firewall (WAF) with rules specifically designed to detect and block SQL injection patterns in HTTP parameters related to calendar views. Additionally, enforcing the principle of least privilege on the database user account associated with the WordPress installation can limit the blast radius of any successful exploitation attempt by restricting permissions such as FILE or SUPER privileges. Regular security audits and code reviews focusing on data handling practices are essential to prevent recurrence of similar vulnerabilities in future updates.