The plugin registers AJAX actions using the wp_ajax_nopriv_ hook, making them globally accessible to unauthenticated users. Furthermore, the method is excluded from the plugin's getNoncedMethods() array, and the base getPermissions() check returns an empty array. Attackers can exploit this by sending crafted AJAX requests to the vulnerable endpoint, iterating through task IDs to retrieve stored task objects. These objects contain plaintext OpenAI API keys, AI prompts, keywords, and specific model configuration parameters. This exposure allows threat actors to hijack third-party AI services linked to the compromised WordPress installation and potentially leverage the leaked configuration to refine further downstream attacks.

Attack Chain

1. Attacker identifies a WordPress site running the AI Chatbot & Workflow Automation plugin.
2. Attacker probes the site to determine if the wp-admin/admin-ajax.php endpoint is accessible for plugin-specific actions.
3. Attacker crafts a series of HTTP GET or POST requests directed at the getCurrentTaskResults AJAX action.
4. Attacker performs sequential enumeration of task IDs (e.g., iterating integer values) within the request parameters.
5. The plugin processes the requests, bypassing authentication due to the use of wp_ajax_nopriv_.
6. The plugin retrieves sensitive task data, including plaintext API keys, from the backend database.
7. The sensitive data is returned to the attacker in a JSON-formatted response.
8. Attacker parses the JSON response to harvest OpenAI API keys and configuration details for unauthorized usage.

Impact

Successful exploitation leads to the unauthorized disclosure of sensitive plugin configuration data, specifically plaintext OpenAI API keys. In an enterprise or high-traffic environment, this results in the theft of proprietary AI prompts and costly API credit theft. Unauthorized access to these keys could allow attackers to perform actions on behalf of the organization within the associated AI service platform.

Recommendation

• Update the AI Chatbot & Workflow Automation plugin to a version beyond 1.4.6 immediately.
• Audit access logs for high-frequency requests to admin-ajax.php containing the action parameter associated with getCurrentTaskResults.
• If the plugin cannot be updated, disable the plugin until a patch is applied.
• Revoke and rotate any OpenAI API keys stored in WordPress plugins that were exposed or suspected of being accessed by unauthorized parties.