CVE-2026-88926 in VikRentItems Flexible Rental Management System Plugin
Summary
by MITRE • 09/19/2026
The VikRentItems Flexible Rental Management System WordPress plugin before 1.2.4 does not sanitise and escape some of its parameters before using them in SQL statements, allowing unauthenticated users to perform SQL injection attacks.
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Analysis
by VulDB Data Team • 09/19/2026
The vulnerability identified within the VikRentItems Flexible Rental Management System for WordPress prior to version 1.2.4 represents a critical security flaw rooted in inadequate input validation and data handling practices. Specifically, the plugin fails to properly sanitize or escape user-supplied parameters before incorporating them into SQL queries executed against the underlying database. This deficiency creates an avenue for unauthenticated attackers to manipulate these inputs, thereby altering the intended logic of the database operations. The absence of proper escaping mechanisms means that special characters within input fields are not neutralized, allowing malicious code structures to be interpreted as executable commands by the database engine rather than treated as literal data values.
From a technical perspective, this flaw is classified under CWE-89, which denotes Improper Neutralization of Special Elements used in an SQL Command, commonly known as SQL Injection. The vulnerability allows for remote exploitation without requiring any form of authentication or prior user interaction beyond accessing the affected plugin endpoints. Attackers can craft specific HTTP requests containing maliciously formatted parameters that exploit this lack of sanitization. By injecting arbitrary SQL statements through these parameters, an attacker can bypass access controls and interact directly with the database backend. This capability extends far beyond simple data retrieval, enabling complex operations such as extracting sensitive information from other tables within the same database schema or modifying existing records to alter system behavior.
The operational impact of this vulnerability is severe due to its unauthenticated nature. Since no login credentials are required to trigger the exploit, any visitor to a website running an affected version of VikRentItems can potentially compromise the integrity and confidentiality of the site's data. Successful exploitation could lead to unauthorized access to customer personal information, rental transaction histories, payment details, and administrative configurations stored in the WordPress database. Furthermore, depending on the specific SQL commands injected, attackers might escalate privileges or even achieve remote code execution if the database configuration permits certain dangerous functions like LOAD_FILE or INTO OUTFILE, although this is dependent on server-level settings. This poses a significant risk to business continuity and customer trust, as data breaches often result in regulatory penalties and reputational damage.
In alignment with industry threat modeling frameworks such as MITRE ATT&CK, this vulnerability facilitates techniques associated with Data from Information Repositories (T1005) and potentially SQL Injection for privilege escalation or lateral movement depending on the database environment. The lack of input validation directly supports these attack vectors by providing a reliable entry point into the backend infrastructure. To mitigate this risk, immediate action is required to update the VikRentItems plugin to version 1.2.4 or later, where the developers have addressed these sanitization issues. Additionally, implementing Web Application Firewalls can provide an additional layer of defense by filtering out malicious SQL patterns in incoming traffic. Developers should also adhere to secure coding standards that mandate parameterized queries and prepared statements for all database interactions, ensuring that user input is always treated as data rather than executable code. Regular security audits and penetration testing are recommended to identify similar vulnerabilities across the entire application stack before they can be exploited by malicious actors.