CVE-2022-1453 in RSVPMaker Plugin
Summary
by MITRE • 05/11/2022
The RSVPMaker plugin for WordPress is vulnerable to unauthenticated SQL Injection due to missing SQL escaping and parameterization on user supplied data passed to a SQL query in the rsvpmaker-util.php file. This makes it possible for unauthenticated attackers to steal sensitive information from the database in versions up to and including 9.2.5.
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Analysis
by VulDB Data Team • 04/08/2026
The vulnerability identified as CVE-2022-1453 affects the RSVPMaker plugin for WordPress, representing a critical security flaw that undermines the integrity of affected systems. This issue stems from insufficient input validation and sanitization practices within the plugin's codebase, specifically in the rsvpmaker-util.php file where user-supplied data is directly incorporated into SQL queries without proper escaping or parameterization mechanisms. The vulnerability impacts all WordPress installations running version 9.2.5 or earlier, creating an attack surface that exposes sensitive data to unauthorized access attempts.
The technical implementation of this vulnerability demonstrates a classic SQL injection flaw that aligns with CWE-89, which categorizes improper neutralization of special elements used in SQL commands. The plugin fails to implement proper prepared statements or parameterized queries, allowing attackers to manipulate database queries through crafted input parameters. This omission creates a condition where malicious actors can inject arbitrary SQL code into the database layer, bypassing normal authentication and authorization mechanisms. The vulnerability is particularly concerning because it operates without requiring any authentication credentials, making it accessible to any attacker with knowledge of the plugin's functionality.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with the capability to extract sensitive information from the WordPress database including user credentials, personal information, and potentially administrative access details. Attackers can leverage this vulnerability to enumerate database contents, modify existing records, or even execute destructive operations depending on the database privileges assigned to the WordPress connection. The unauthenticated nature of the attack means that threat actors can exploit this weakness without needing to compromise legitimate user accounts or credentials, significantly increasing the attack surface and potential damage scope.
Security practitioners should implement immediate mitigations including upgrading to the patched version of the RSVPMaker plugin, which addresses the SQL injection vulnerability through proper input sanitization and parameterized query implementation. Additionally, implementing web application firewalls with SQL injection detection capabilities can provide additional defense-in-depth measures. Organizations should also conduct thorough security assessments of their WordPress installations to identify any other potentially vulnerable plugins or themes that may exhibit similar patterns of insecure database query construction. The ATT&CK framework categorizes this vulnerability under T1190 - Exploit Public-Facing Application, emphasizing the importance of maintaining up-to-date software and implementing proper input validation as primary defense mechanisms against such attacks.