CVE-2026-78468 in Pro Plugin
Summary
by MITRE • 08/25/2026
The FluentCRM Pro – Email Newsletter, Automation, Email Marketing, Email Campaigns, Optins, Leads, and CRM Solution plugin for WordPress is vulnerable to SQL Injection in all versions up to, and including, 3.1.12 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Author-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
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Analysis
by VulDB Data Team • 09/06/2026
The vulnerability identified in FluentCRM Pro versions up to and including 3.1.12 represents a critical security flaw within the WordPress ecosystem, specifically categorized under CWE-89 Improper Neutralization of Special Elements used in an SQL Command. This type of injection arises from insufficient input validation and sanitization mechanisms when processing user-supplied data before its inclusion in database queries. The core technical failure lies in the application's handling of parameters that are directly concatenated into SQL statements without adequate escaping or the use of prepared statements with parameterized queries. By failing to properly neutralize special elements such as quotes, semicolons, and comment markers within these inputs, the software allows malicious actors to alter the logic of database operations intended by the developer.
From an operational perspective, this vulnerability requires authenticated access at a minimum level of Author or higher to be exploited. This constraint significantly influences the threat landscape, limiting potential attackers to individuals who have already gained some degree of trust within the WordPress environment, such as content editors or lower-level administrators. Despite this authentication requirement, the impact remains severe because it enables SQL Injection attacks that can append additional queries to existing ones. Attackers can leverage these injected commands to extract sensitive information stored in the database, including user credentials, personal identifiable information associated with leads and customers, and other proprietary business data held by organizations using the plugin for their CRM and email marketing operations.
The exploitation of this flaw aligns with several techniques documented in the MITRE ATT&CK framework, particularly those related to Data from Information Repositories and SQL Injection via Web Applications. The ability to append queries suggests that an attacker could potentially perform blind SQL injection or error-based extraction depending on how the database server responds to malformed syntax. This capability allows for the systematic dumping of database contents, which can lead to further compromise if credential hashes are retrieved and cracked, thereby escalating privileges beyond the initial Author-level access. The lack of sufficient preparation in existing SQL queries indicates a fundamental gap in secure coding practices regarding dynamic query construction.
Mitigation strategies must focus on immediate remediation through software updates as well as defensive configuration measures. Administrators should upgrade FluentCRM Pro to version 3.1.13 or later, where the developers have addressed these input validation issues by implementing proper escaping functions and utilizing prepared statements for all database interactions involving user-supplied data. In environments where upgrading is not immediately feasible, additional hardening steps include restricting access to WordPress admin areas through IP whitelisting, enforcing strong multi-factor authentication for all accounts with Author-level or higher privileges, and deploying a Web Application Firewall capable of detecting and blocking SQL injection patterns in HTTP requests. Regular security audits and code reviews focusing on database interaction layers are also recommended to prevent similar vulnerabilities from being introduced during future development cycles.