CVE-2026-85304 in Unlimited Elements for Elementor Plugin
Summary
by MITRE • 09/03/2026
Missing Authorization vulnerability in Unlimited Elements Unlimited Elements For Elementor (Free Widgets, Addons, Templates) allows Exploiting Incorrectly Configured Access Control Security Levels.
This issue affects Unlimited Elements For Elementor (Free Widgets, Addons, Templates): from n/a through 2.0.17.
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Analysis
by VulDB Data Team • 09/03/2026
The vulnerability identified in the Unlimited Elements plugin for WordPress represents a critical failure in access control mechanisms, specifically categorized under CWE-862: Missing Authorization. This flaw allows unauthenticated or low-privileged users to perform actions that should be restricted to administrators or authenticated editors with specific capabilities. The root cause lies in the incorrect configuration of security levels within the plugin's codebase, where input validation and permission checks are either absent or insufficiently enforced before processing user requests. In modern web application architecture, particularly within content management systems like WordPress, proper authorization ensures that users can only access resources and execute functions appropriate to their assigned role. The absence of these checks creates a direct pathway for attackers to manipulate the plugin's functionality without valid credentials, bypassing standard security boundaries designed to protect site integrity.
From an operational perspective, this vulnerability enables significant malicious activities ranging from unauthorized data modification to complete system compromise depending on the specific endpoints affected. An attacker could potentially alter website content, inject malicious scripts through widget configurations, or escalate privileges by manipulating admin-only settings exposed via API calls or AJAX handlers that lack proper nonce verification and capability checks. The impact extends beyond simple defacement; it can lead to persistent backdoors being installed if the vulnerability allows for file inclusion or code execution vectors within the plugin's template rendering engine. Given that Unlimited Elements is a widely used extension for page building, the widespread deployment of vulnerable versions amplifies the risk across thousands of websites, making this a high-severity issue with broad implications for web security posture.
The exploitation of this flaw aligns closely with MITRE ATT&CK techniques related to privilege escalation and unauthorized access, specifically T1078: Valid Accounts or T1546: Event Triggered Execution if the vulnerability allows for code injection through widget settings. Attackers typically exploit such weaknesses by crafting specific HTTP requests that target unprotected endpoints within the plugin's REST API or AJAX handlers. Since the issue affects versions from n/a through 2.0.17, any instance running these versions is susceptible to exploitation until patched. The lack of authorization checks means that even if a user has minimal permissions on the WordPress dashboard, they may still interact with sensitive functions intended for higher-privileged roles, effectively undermining the principle of least privilege fundamental to secure system design.
Mitigation strategies must prioritize immediate remediation through software updates and rigorous access control auditing. Site administrators should upgrade Unlimited Elements to version 2.0.18 or later where these authorization flaws have been addressed by implementing robust capability checks using WordPress functions such as current_user_can before processing any administrative actions. Additionally, deploying a Web Application Firewall can provide an additional layer of defense by filtering out malicious requests that attempt to exploit known vulnerability patterns associated with missing authorization. Regular security audits and penetration testing should be conducted to identify similar misconfigurations in other plugins or custom code, ensuring that all user inputs are validated against appropriate permission levels before execution. Maintaining up-to-date software dependencies is the most effective defense against such exploitation vectors prevalent in open-source ecosystems.