CVE-2024-4083 in Easy Restaurant Table Booking Plugin
Summary
by MITRE • 05/03/2024
The Easy Restaurant Table Booking plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0.0. This is due to missing or incorrect nonce validation when saving settings. This makes it possible for unauthenticated attackers to change the plugin's settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
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Analysis
by VulDB Data Team • 05/25/2026
The Easy Restaurant Table Booking plugin for WordPress presents a critical cross-site request forgery vulnerability that affects all versions up to and including 1.0.0. This vulnerability stems from the absence of proper nonce validation mechanisms during the settings save process, creating a significant security gap that can be exploited by unauthenticated attackers. The flaw allows malicious actors to manipulate the plugin's configuration parameters through carefully crafted forged requests that appear legitimate to the WordPress system.
This CSRF vulnerability operates by exploiting the trust relationship between the web application and the user's browser, specifically targeting the administrative functions of the plugin. When an administrator performs routine actions such as clicking on malicious links or visiting compromised websites, the forged requests can execute unauthorized changes to the plugin's configuration settings without the administrator's knowledge or consent. The vulnerability is particularly dangerous because it does not require authentication to initiate the attack, making it accessible to anyone who can influence an administrator's browser session.
The technical implementation of this flaw demonstrates a failure in proper input validation and request verification mechanisms. According to CWE-352, this represents a classic cross-site request forgery vulnerability where the application fails to validate that requests originate from legitimate sources. The absence of nonce checks means that any request sent to the plugin's settings endpoint can be processed without proper authorization verification, creating an attack surface that aligns with ATT&CK technique T1213.002 for credential access through manipulation of web application inputs. This weakness enables attackers to perform unauthorized modifications to the plugin's behavior and configuration parameters.
The operational impact of this vulnerability extends beyond simple configuration changes, as it can potentially lead to more severe consequences within the WordPress environment. Attackers could manipulate booking settings to redirect reservations, alter pricing configurations, or disable critical functionality, affecting business operations and potentially compromising customer data. The vulnerability's exploitation requires social engineering elements to trick administrators into executing malicious requests, but once successful, it provides persistent access to the plugin's administrative functions and can be leveraged for further attacks within the WordPress ecosystem.
Organizations using this plugin should immediately implement mitigations including updating to the latest available version, implementing proper nonce validation mechanisms, and establishing network-level protections against unauthorized modifications. Security administrators should also consider implementing additional monitoring for unusual plugin configuration changes and educate users about the risks of clicking suspicious links. The vulnerability highlights the importance of proper input validation and authentication checks in web applications, particularly in content management systems where administrative functions are frequently targeted by attackers. According to industry best practices, all web applications should implement robust CSRF protection mechanisms including proper nonce generation and validation to prevent unauthorized modifications to system configurations.