CVE-2025-6053 in Zuppler Online Ordering Plugin
Summary
by MITRE • 07/18/2025
The Zuppler Online Ordering plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.1.0. This is due to missing or incorrect nonce validation on the 'zuppler-online-ordering-options' page. This makes it possible for unauthenticated attackers to update settings and inject malicious web scripts 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 • 07/18/2025
The vulnerability identified as CVE-2025-6053 affects the Zuppler Online Ordering plugin for WordPress, representing a critical security flaw that has persisted across all versions up to and including 2.1.0. This plugin facilitates online ordering functionality for WordPress websites, making it a potentially attractive target for attackers seeking to compromise WordPress installations. The vulnerability manifests as a cross-site request forgery weakness that fundamentally undermines the security controls designed to protect administrative functions within the plugin's settings interface.
The technical flaw stems from the absence of proper nonce validation mechanisms on the 'zuppler-online-ordering-options' page within the plugin's administrative interface. Nonces, or number used once, serve as critical security tokens that verify the authenticity of requests originating from legitimate administrators. Without these validation checks, the plugin fails to distinguish between legitimate administrative actions initiated by authorized users and malicious requests crafted by attackers. This missing validation creates an exploitable condition where an attacker can construct a forged request that appears to originate from a legitimate administrative session, thereby bypassing the normal authentication and authorization checks that should protect sensitive configuration settings.
The operational impact of this vulnerability extends beyond simple data manipulation, as it provides attackers with the capability to inject malicious web scripts into the target website. This injection capability represents a significant escalation from basic CSRF attacks, as it allows for the execution of arbitrary code within the context of the victim administrator's browser session. The attack requires social engineering to trick an administrator into clicking on a malicious link, but once successful, it can result in complete compromise of the affected WordPress installation. Attackers could potentially modify plugin settings to redirect users to malicious sites, inject malicious code into the website's pages, or even establish persistent backdoors through the compromised administrative access.
This vulnerability aligns with CWE-352, which specifically addresses Cross-Site Request Forgery, and demonstrates how insufficient validation of request origins can lead to unauthorized administrative actions. The attack vector follows patterns consistent with ATT&CK technique T1566, which covers social engineering methods including spearphishing with a link, where attackers manipulate administrators into performing actions that compromise system security. The lack of proper nonce implementation represents a fundamental failure in the principle of least privilege, as it allows unauthenticated attackers to perform administrative functions that should require explicit authentication and authorization. Organizations using this plugin are particularly vulnerable because the attack does not require authentication credentials or complex exploitation techniques, making it accessible to threat actors with minimal technical expertise.
The recommended mitigations include immediate patching of the plugin to version 2.1.1 or later, which should contain proper nonce validation mechanisms. Administrators should also implement additional security measures such as role-based access controls, regular security audits of installed plugins, and monitoring for unusual administrative activities. Network-level protections such as web application firewalls can help detect and block malicious requests, while security awareness training for administrators can reduce the risk of successful social engineering attacks. Additionally, organizations should consider implementing multi-factor authentication for administrative accounts and regularly review plugin permissions to ensure that only necessary functionality is enabled, thereby reducing the potential attack surface for similar vulnerabilities in the future.