CVE-2026-96345 in Estatik Plugin
Summary
by MITRE • 09/30/2026
Administrator SQL Injection in Estatik <= 4.3.5 versions.
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Analysis
by VulDB Data Team • 09/30/2026
The vulnerability identified as an administrator-level SQL injection within Estatik version 4.3.5 and earlier represents a critical security flaw that compromises the integrity of the underlying database management system. This specific type of vulnerability arises from insufficient sanitization or validation of user-supplied input when interacting with backend database queries, particularly in administrative interfaces where privilege levels are elevated. In web applications like Estatik, which manage real estate listings and associated data, the administrator panel serves as a central hub for configuration, content management, and system settings. When an attacker exploits this flaw, they can manipulate SQL statements to bypass authentication mechanisms, extract sensitive information such as user credentials or proprietary business data, modify database records, or potentially execute arbitrary commands on the server hosting the application if the underlying database engine permits it.
From a technical perspective, the root cause lies in the improper handling of input parameters passed through HTTP requests, likely via GET or POST methods, which are then concatenated directly into SQL query strings without adequate escaping or parameterization. This failure aligns with CWE-89, commonly known as Improper Neutralization of Special Elements used in an SQL Command, also referred to as SQL Injection. The absence of prepared statements or stored procedures allows malicious actors to inject syntactically correct but semantically dangerous SQL code into the application logic. Because this vulnerability affects administrator functions, it implies that either the authentication checks are bypassed entirely through injection techniques such as tautology attacks, or the input validation is missing in endpoints that should require strict administrative privileges. This distinction is crucial because it indicates a fundamental weakness in both access control and data handling layers of the application architecture.
The operational impact of this vulnerability is severe due to its potential for full system compromise. An attacker with network access can leverage tools like sqlmap or custom scripts to automate the exploitation process, extracting entire database contents including usernames, hashed passwords, email addresses, and potentially financial information if stored within the platform. Beyond data exfiltration, successful exploitation could lead to unauthorized modification of property listings, defacement of the website by altering content through SQL UPDATE statements, or complete deletion of critical tables using DROP commands. In worst-case scenarios where the database user has high privileges on the operating system, such as MySQL running with FILE privilege enabled, an attacker might write shell scripts to disk and execute them via functions like INTO OUTFILE, leading to remote code execution and total control over the server infrastructure. This aligns with ATT&CK techniques related to Credential Access, Data Exfiltration, and potentially Command and Control if further pivoting occurs within the network environment.
Mitigation strategies must address both immediate remediation and long-term architectural improvements. The most effective solution is to upgrade Estatik to a version newer than 4.3.5 where this vulnerability has been patched by the developers through proper input validation and parameterized queries. For organizations unable to update immediately, implementing Web Application Firewalls (WAF) can provide temporary protection by detecting and blocking common SQL injection patterns in HTTP traffic. Additionally, database users should be configured with the principle of least privilege, ensuring that the application connects using an account with minimal permissions necessary for operation, thereby limiting the potential damage even if exploitation occurs. Regular security audits, static code analysis tools focused on finding CWE-89 instances, and manual penetration testing are essential to identify similar flaws in other parts of the application before they can be exploited by malicious actors.