CVE-2026-95604 in Loops & Logic Plugin
Summary
by MITRE • 09/23/2026
Unauthenticated Broken Access Control in Loops & Logic <= 4.2.4 versions.
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Analysis
by VulDB Data Team • 09/23/2026
The vulnerability identified as an unbroken access control issue within the Loops and Logic plugin, specifically affecting versions up to 4.2.4, represents a critical failure in server-side authorization mechanisms. This flaw allows attackers who are not authenticated or lack sufficient privileges to perform actions that should be restricted to authorized users. In the context of WordPress plugins, such vulnerabilities often stem from insufficient validation of user capabilities before executing sensitive operations. The Loops and Logic plugin is designed to enhance website functionality by allowing complex conditional logic for content display, but its implementation in these older versions fails to properly verify whether the requesting user has the necessary permissions to access specific endpoints or execute administrative functions. This misalignment between intended security policy and actual enforcement creates a significant entry point for malicious actors seeking to compromise site integrity.
From a technical perspective, this vulnerability is classified under CWE-284, which covers Improper Access Control, specifically highlighting scenarios where authorization checks are bypassed or entirely missing. The root cause typically involves the plugin's handling of AJAX requests or REST API endpoints without adequately checking the current user’s role and capabilities against WordPress core functions such as current_user_can(). When these checks are omitted or incorrectly implemented, any visitor to the website can interact with internal logic handlers that modify database records, alter site settings, or execute code intended only for administrators. This lack of strict input validation combined with weak authorization controls enables a straightforward exploitation path where an attacker sends crafted HTTP requests to trigger unintended behavior within the application’s backend processes.
The operational impact of this vulnerability is severe due to its potential for full website compromise. An unauthenticated attacker can leverage this flaw to escalate privileges, effectively gaining administrative access without needing valid credentials. This capability allows the insertion of malicious code, such as web shells or backdoors, into theme files or database entries, leading to persistent unauthorized control over the server environment. Furthermore, attackers may use this access to exfiltrate sensitive data stored in the WordPress database, including user information and configuration details that could facilitate further attacks against other systems connected to the compromised site. The ability to modify content dynamically also poses a risk of defacement or phishing campaigns directed at legitimate users visiting the website, thereby damaging reputation and trust.
This type of vulnerability aligns with several techniques observed in the MITRE ATT&CK framework for enterprise security. Specifically, it relates to T1078, Valid Accounts, as attackers often exploit broken access controls to gain initial footholds that mimic legitimate user behavior but operate outside authorized boundaries. Additionally, if the exploitation leads to code execution or file manipulation, it maps to T1505, Server Software Component, where adversaries install backdoors or web shells for persistent access. The unauthenticated nature of the attack also correlates with reconnaissance and initial access phases, particularly when combined with other vulnerabilities like SQL injection or cross-site scripting that might be present in the same codebase but are not explicitly detailed here.
To mitigate this risk, immediate action is required to update the Loops and Logic plugin to version 4.2.5 or later, where these authorization checks have been corrected by the developers. Administrators should verify their WordPress installation for any remaining instances of older versions through automated scanning tools or manual inspection of installed plugins. In environments where updating is not immediately feasible due to compatibility concerns with other themes or plugins, temporary mitigation strategies include restricting access to wp-admin and critical plugin directories via .htaccess rules if the server supports it, although this does not fully address API-level vulnerabilities. Implementing a Web Application Firewall (WAF) can also help by filtering out suspicious request patterns associated with exploitation attempts, providing an additional layer of defense while permanent remediation is prepared. Regular security audits and adherence to secure coding standards that prioritize explicit authorization checks are essential for preventing similar issues in future updates or other software components.