CVE-2026-92997 in Click N Chat Plugin
Summary
by MITRE • 10/21/2026
The Click n Chat (Chat Widget Integration) WordPress plugin before 1.1.3 does not properly validate a parameter before using it as a column identifier in a SQL query, allowing unauthenticated attackers to perform SQL injection attacks.
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Analysis
by VulDB Data Team • 10/21/2026
The vulnerability identified within the Click n Chat WordPress plugin prior to version 1.1.3 represents a critical security flaw rooted in improper input validation and insufficient sanitization of user-supplied data before its incorporation into database operations. This specific weakness allows unauthenticated attackers to execute SQL injection attacks, which are among the most dangerous vulnerabilities affecting web applications due to their potential for complete system compromise. The core technical issue lies in the plugin's handling of a parameter that is directly used as a column identifier within a Structured Query Language statement without adequate verification or escaping mechanisms. In standard secure coding practices, any data originating from external sources must be treated as untrusted until it has been rigorously validated against expected formats and sanitized to prevent malicious interpretation by the database engine.
From an industry classification perspective, this vulnerability aligns with CWE-89, which defines Improper Neutralization of Special Elements used in an SQL Command commonly known as SQL Injection. The specific nature of this flaw involves the lack of proper validation for a parameter that dictates structural elements of the query rather than just data values. When column identifiers are dynamically generated from user input without strict whitelisting or robust escaping, attackers can manipulate the syntax structure of the database command itself. This differs slightly from standard SQL injection where malicious payloads are injected into string literals; here, the attacker influences the schema interpretation by injecting valid SQL keywords that alter how the query is parsed and executed by the underlying relational database management system.
The operational impact of this vulnerability is severe because it requires no authentication to exploit. Unauthenticated attackers can interact with the plugin's endpoints remotely over the network to craft malicious requests that inject arbitrary SQL commands into the application's backend processes. Successful exploitation could lead to unauthorized access to sensitive data stored in the WordPress database, including user credentials, personal information, and administrative settings. Furthermore, depending on the privileges of the database account used by the web application, an attacker might be able to modify or delete existing data, disrupt service availability through destructive queries, or potentially escalate their attack vector to achieve remote code execution if the database server allows certain high-privilege commands such as writing files to disk or executing system-level functions.
This vulnerability is also relevant to MITRE ATT&CK framework techniques related to Database Access and Data Exfiltration. Attackers leveraging this flaw would likely engage in reconnaissance phases followed by direct exploitation of application logic flaws to gain initial access to the database layer. The ability to perform SQL injection without authentication significantly lowers the barrier for entry, allowing automated scanning tools or opportunistic attackers to compromise vulnerable instances at scale. This underscores the importance of implementing defense-in-depth strategies where even if input validation fails, other controls such as Web Application Firewalls or strict least-privilege database configurations can mitigate the potential damage.
To remediate this issue and prevent similar vulnerabilities in future development cycles, it is essential to implement rigorous parameterized queries or prepared statements that separate SQL logic from data inputs. However, since column identifiers cannot always be handled via standard parameterization due to syntax restrictions in many database engines, developers must employ strict whitelisting techniques for dynamic table and column names. This involves defining a predefined list of acceptable values and rejecting any input that does not match exactly. Additionally, applying the principle of least privilege ensures that even if an injection occurs, the compromised account lacks permissions to perform destructive or high-impact operations. Upgrading to version 1.1.3 or later is the primary mitigation strategy as it addresses these validation gaps by enforcing proper checks on all incoming parameters before they are utilized in database queries.