CVE-2026-107745: AI Engine path traversal / file read vulnerability

medium 4.2 published 2026-10-28 · updated 2026-10-29

Affected versions: 3.8.4 and older
Fixed in: 3.8.5 *
Latest version: 3.9.0
Severity: Medium · CVSS 4.2
Active installs: 90,000+
Type: Path traversal / file read

* The source does not name a fixed version; this is the first wordpress.org release after the last affected version.

What an attacker needs

Access: A logged-in account with Subscriber-level access or higher.

CVSS vector (score by Wordfence): CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L

What to do now

Update AI Engine to 3.8.5 or newer (the latest is 3.9.0): Dashboard → Updates, or Plugins → “update now”.
If you cannot update right away, deactivate it until you can.
Turn on auto-updates for it: Plugins → “Enable auto-updates” on its row.
Not sure which version you run? Check your version against every known AI Engine issue. With WP-CLI: wp plugin get ai-engine --field=version.
If you ran an affected version and something looks off (new admin users, spam pages, redirects), run the free scan below.

The advisory

The AI Engine – The Chatbot, AI Framework & MCP for WordPress plugin for WordPress is vulnerable to limited media file deletion due to insufficient file path validation in the upload_file function in all versions up to, and including, 3.8.4 This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary media files on the server. This requires the administrator to have enabled the Public API option, and exploitation depends on the hourly cleanup_files task running after the malicious upload.

Description from the CVE record, published by Wordfence (the CVE Numbering Authority), via the NVD entry for CVE-2026-107745.

References

NVD CVE-2026-107745 nvd.nist.gov
Wordfence advisory www.wordfence.com
Code change (fix) plugins.trac.wordpress.org
Plugin source plugins.trac.wordpress.org

Ran an affected version? Check your site for signs of a hack

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Where this data comes from

CVE record, score and references: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
Versions and install counts: wordpress.org/plugins/ai-engine (Plugins API), fetched 2026-11-04.
The summary, “what an attacker needs” and “what to do” sections are our plain-English reading of the record and the plugin's release history; the quoted description is the record's own text. Spot an error? Email Daniel.