CVE-2015-7235 in CP Reservation Calendar Plugin
Summary
by MITRE
Multiple SQL injection vulnerabilities in dex_reservations.php in the CP Reservation Calendar plugin before 1.1.7 for WordPress allow remote attackers to execute arbitrary SQL commands via the (1) id parameter in a dex_reservations_calendar_load2 action or (2) dex_item parameter in a dex_reservations_check_posted_data action in a request to the default URI.
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Analysis
by VulDB Data Team • 02/13/2025
The vulnerability identified as CVE-2015-7235 affects the CP Reservation Calendar plugin for WordPress, specifically targeting versions prior to 1.1.7. This issue manifests as multiple SQL injection vulnerabilities within the dex_reservations.php file that enable remote attackers to execute arbitrary SQL commands against the affected WordPress installation. The flaw exists in the plugin's handling of user-supplied input parameters, creating a direct pathway for malicious actors to manipulate database queries and potentially gain unauthorized access to sensitive information.
The technical implementation of this vulnerability occurs through two distinct attack vectors within the plugin's request handling mechanism. The first vector involves the id parameter within the dex_reservations_calendar_load2 action, while the second vector targets the dex_item parameter in the dex_reservations_check_posted_data action. Both parameters are processed without adequate input validation or sanitization, allowing attackers to inject malicious SQL payloads that bypass the intended query structure. This represents a classic SQL injection vulnerability classified under CWE-89, which specifically addresses improper neutralization of special elements used in SQL commands.
The operational impact of this vulnerability extends beyond simple data extraction, as successful exploitation could enable attackers to perform complete database manipulation including data modification, deletion, or unauthorized access to user credentials. WordPress installations using the affected plugin become susceptible to various malicious activities such as credential theft, data corruption, or even complete system compromise if the database user has elevated privileges. The remote nature of the attack means that no local access is required, making this vulnerability particularly dangerous as it can be exploited from anywhere on the internet without authentication.
From a cybersecurity perspective, this vulnerability aligns with ATT&CK technique T1071.004 for application layer protocol manipulation and T1190 for exploit for information disclosure. The attack surface is particularly concerning given that WordPress remains one of the most widely deployed content management systems, with many installations running outdated plugins that may not receive regular security updates. Organizations using the CP Reservation Calendar plugin should immediately implement patch management procedures to upgrade to version 1.1.7 or later, which contains the necessary input validation fixes to prevent parameter injection attacks. Additionally, implementing web application firewalls and database query monitoring can provide additional layers of defense against similar vulnerabilities in other components of the web application stack.