Kognetiks Chatbot for WordPress <= 2.1.7 - Missing Authorization to Authenticated (Subscriber+) Assistant Update

Vulnerability

The Kognetiks Chatbot for WordPress plugin (chatbot-chatgpt) is vulnerable to unauthorized modification of data due to a missing capability check on the update_assistant() function. This affects all versions up to and including 2.1.7 [1]. The function does not verify that the requesting user has the necessary permissions (e.g., admin-level capabilities) before processing updates to GTP assistants.

Exploitation

An authenticated attacker with subscriber-level access or above can exploit this vulnerability by sending a crafted request to the update_assistant() function. No additional privileges are required; the attacker only needs a valid WordPress user account with subscriber role, which is typically the default for any registered user [1].

Impact

Successful exploitation allows the attacker to modify GTP assistants without authorization. This could lead to changes in the chatbot's behavior or responses, potentially affecting the site's users and content. The impact is limited to unauthorized modification of data (integrity), as the vulnerability affects data updates rather than data disclosure or remote code execution.

Mitigation

The vendor has released version 2.1.8 or later to fix this vulnerability. Users should update to the latest version of the plugin, which is 2.4.6 as of February 2026 [1]. No workarounds are documented; the recommended mitigation is to apply the patch. The plugin is actively maintained and updated on the WordPress plugin repository.