CVE-2025-12043 in Autochat Automatic Conversation Plugin
Summary
by MITRE • 11/25/2025
The Autochat Automatic Conversation plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'wp_ajax_nopriv_auycht_saveCid' AJAX endpoint in all versions up to, and including, 1.1.9. This makes it possible for unauthenticated attackers to connect and disconnect the client ID.
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Analysis
by VulDB Data Team • 11/25/2025
The Autochat Automatic Conversation plugin for WordPress presents a critical security vulnerability that undermines the integrity of user data through improper access controls. This flaw exists within the plugin's AJAX endpoint implementation where the 'wp_ajax_nopriv_auycht_saveCid' handler fails to validate user permissions before executing critical operations. The vulnerability affects all versions up to and including 1.1.9, making it widespread across numerous installations that have not yet received updates. The missing capability check represents a fundamental breakdown in the plugin's security architecture, as it allows any unauthenticated user to manipulate the client connection status without proper authorization. This weakness directly violates standard security principles that require explicit permission validation for all data modification operations.
The technical exploitation of this vulnerability enables attackers to perform unauthorized client ID connections and disconnections through the WordPress AJAX interface. Since the endpoint does not verify whether the requesting user possesses the necessary privileges, malicious actors can leverage this flaw to disrupt communication flows, potentially intercept messages, or manipulate conversation states. The impact extends beyond simple data modification as it can compromise the plugin's core functionality and undermine the trustworthiness of automated conversation management. This vulnerability falls under CWE-863, which addresses "Incorrect Authorization," specifically targeting the failure to properly verify user permissions before executing privileged operations. The flaw represents a classic example of insufficient access control that allows unauthorized parties to perform actions they should not be permitted to execute.
Operationally, this vulnerability creates significant risks for WordPress administrators and end users who rely on the Autochat plugin for automated conversation handling. Attackers can exploit this weakness to disrupt customer service workflows, manipulate conversation tracking, or potentially gain insights into user interactions by controlling client connections. The unauthenticated nature of the attack means that no prior credentials or access are required, making it particularly dangerous as it can be exploited by anyone with access to the target website. The impact on business operations could be substantial, particularly for e-commerce sites or support platforms that depend on automated conversation management systems. This vulnerability also aligns with ATT&CK technique T1078.004 which covers "Valid Accounts: Cloud Accounts" and demonstrates how missing authorization checks can create opportunities for attackers to assume control over automated systems.
Organizations should immediately implement mitigations including updating to the latest plugin version where this vulnerability has been addressed, applying temporary workarounds such as disabling the affected AJAX endpoint, or implementing additional access controls at the web server level. Network monitoring should be enhanced to detect unusual patterns in AJAX requests targeting the vulnerable endpoint. Administrators should also conduct thorough security assessments of their WordPress installations to identify similar authorization flaws in other plugins or themes. The vulnerability highlights the importance of comprehensive security testing for all AJAX endpoints and the necessity of implementing proper capability checks before executing any data modification operations. Regular security audits and timely plugin updates remain critical defense mechanisms against such vulnerabilities that can compromise the integrity of automated systems.