CVE-2026-15008 in Uncanny Automator Plugin
Summary
by MITRE • 07/16/2026
The Uncanny Automator – Easy Automation, Integration, Webhooks & Workflow Builder Plugin plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the fr_token function in all versions up to, and including, 7.3.1.4. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Exploitation requires a Forminator form connected to an Uncanny Automator recipe configured for 'Everyone', allowing unauthenticated form submissions to supply the malicious serialized payload; a gadget chain is present within the plugin via the Action_Helpers_Email __destruct() method, meaning no external gadget library is required.
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Analysis
by VulDB Data Team • 07/16/2026
The vulnerability in the Uncanny Automator WordPress plugin represents a critical security flaw that stems from inadequate input validation within the fr_token function, affecting all versions up to and including 7.3.1.4. This weakness creates a path for unauthenticated attackers to perform arbitrary file deletion on affected servers, fundamentally compromising the integrity of the WordPress installation. The vulnerability operates through a sophisticated chain of exploitation that leverages the plugin's workflow builder functionality alongside Forminator form integration, creating an attack surface where malicious payloads can be delivered without authentication requirements.
The technical implementation of this vulnerability exploits insufficient sanitization of file paths within the fr_token function, which processes user-supplied data from form submissions. When a Forminator form connects to an Uncanny Automator recipe configured with 'Everyone' access permissions, attackers can submit malicious serialized data that gets processed through the plugin's internal mechanisms. This processing occurs through the Action_Helpers_Email __destruct() method, which serves as a gadget chain within the plugin's codebase, eliminating the need for external gadget libraries to achieve remote code execution. The vulnerability aligns with CWE-22: Improper Limitation of a Pathname to a Restricted Directory and CWE-434: Unrestricted Upload of File with Dangerous Type, both of which are categorized under the OWASP Top Ten as critical security risks.
The operational impact of this vulnerability extends beyond simple file deletion capabilities, potentially enabling complete system compromise when attackers target critical configuration files such as wp-config.php. The combination of unauthenticated access requirements with the presence of a built-in gadget chain creates an environment where attackers can achieve remote code execution without requiring legitimate user credentials or privileged access. This vulnerability operates under ATT&CK technique T1566.002: Phishing: Spearphishing Attachment, as attackers could potentially deliver malicious forms through compromised websites or social engineering campaigns to gain initial foothold.
Mitigation strategies should focus on immediate plugin updates to versions that address the file path validation issue, along with restrictive access controls for Forminator forms connected to Uncanny Automator workflows. Administrators must ensure that recipe configurations do not grant 'Everyone' access permissions unless absolutely necessary, and implement additional security measures such as file integrity monitoring and web application firewalls. The vulnerability demonstrates the importance of proper input validation and the dangerous consequences of including gadget chains within plugins without adequate sandboxing or security controls to prevent exploitation through serialized object manipulation.