CVE-2022-1768 in RSVPMaker Plugin
Summary
by MITRE • 06/13/2022
The RSVPMaker plugin for WordPress is vulnerable to unauthenticated SQL Injection due to insufficient escaping and parameterization on user supplied data passed to multiple SQL queries in the ~/rsvpmaker-email.php file. This makes it possible for unauthenticated attackers to steal sensitive information from the database in versions up to, and including, 9.3.2.
Please note that this is separate from CVE-2022-1453 & CVE-2022-1505.
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Analysis
by VulDB Data Team • 04/08/2026
The vulnerability identified as CVE-2022-1768 affects the RSVPMaker plugin for WordPress, a widely used tool for event management and RSVP tracking. This plugin has been found to contain a critical security flaw that allows unauthenticated attackers to exploit SQL injection vulnerabilities within the plugin's codebase. The vulnerability specifically resides in the ~/rsvpmaker-email.php file where user-supplied data is not properly sanitized or parameterized before being incorporated into database queries. This flaw represents a significant security risk as it enables attackers to execute arbitrary SQL commands without requiring any authentication credentials, making the exploitation process particularly dangerous for WordPress installations that rely on this plugin.
The technical implementation of this vulnerability stems from insufficient input validation and parameterization practices within the plugin's database interaction code. When user data is passed to SQL queries in the rsvpmaker-email.php file, the plugin fails to properly escape or parameterize these inputs before executing database operations. This creates a classic SQL injection attack vector where malicious actors can craft specially formatted input that gets directly embedded into SQL statements. The vulnerability affects all versions of the plugin up to and including version 9.3.2, indicating that this flaw has persisted across multiple releases without proper remediation. The lack of proper input sanitization allows attackers to manipulate database queries through crafted parameters, potentially gaining unauthorized access to sensitive information stored within the WordPress database.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with the capability to extract confidential information from the affected WordPress installations. Unauthenticated attackers can exploit this vulnerability to access user credentials, personal information, event details, and other sensitive data stored in the database. The implications are particularly severe for event management platforms where the RSVPMaker plugin is used, as these systems often contain personal information about attendees, contact details, and potentially payment information. The vulnerability's unauthenticated nature means that any visitor to a website running the affected plugin could potentially exploit this weakness, making it a high-risk vulnerability that affects the entire user base of the plugin. This type of vulnerability aligns with CWE-89 which specifically addresses SQL injection flaws, and can be categorized under ATT&CK technique T1213.002 for data from information repositories.
Mitigation strategies for CVE-2022-1768 should prioritize immediate plugin updates to versions that have addressed this vulnerability, as the plugin developers have likely released patches to fix the SQL injection flaw. Organizations should also implement network-level protections such as web application firewalls that can detect and block malicious SQL injection attempts targeting this specific vulnerability. Database access controls should be reviewed to ensure that the WordPress database user account has minimal required privileges, reducing the potential impact of successful exploitation. Additionally, security monitoring should be enhanced to detect unusual database query patterns that might indicate exploitation attempts. The vulnerability demonstrates the critical importance of proper input validation and parameterization in preventing SQL injection attacks, and serves as a reminder that third-party plugins can introduce significant security risks to WordPress installations. System administrators should conduct thorough security audits of all installed plugins to identify similar vulnerabilities and ensure that all security patches are applied promptly to maintain the integrity of their WordPress environments.