AI Engine Plugin up to 3.3.2 on WordPress rest_helpers_update_media_metadata filename unrestricted upload

Summaryinfo

A vulnerability categorized as critical has been discovered in AI Engine Plugin up to 3.3.2 on WordPress. This affects the function rest_helpers_update_media_metadata. Executing a manipulation of the argument filename can lead to unrestricted upload. This vulnerability is registered as CVE-2026-1400. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability has been found in AI Engine Plugin up to 3.3.2 on WordPress and classified as critical. This vulnerability affects the function rest_helpers_update_media_metadata. The manipulation of the argument filename with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The AI Engine – The Chatbot and AI Framework for WordPress plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the `rest_helpers_update_media_metadata` function in all versions up to, and including, 3.3.2. This makes it possible for authenticated attackers, with Editor-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. The attacker can upload a benign image file, then use the `update_media_metadata` endpoint to rename it to a PHP file, creating an executable PHP file in the uploads directory.

The advisory is shared for download at wordfence.com. This vulnerability was named CVE-2026-1400. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 01/29/2026). The MITRE ATT&CK project declares the attack technique as T1608.002.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Name

• AI Engine Plugin

Version

• 3.3.0
• 3.3.1
• 3.3.2

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CPE 2.2info

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