CVE-2026-7638
Description
The App Builder – Create Native Android & iOS Apps On The Flight plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to and including 5.6.0. This is due to missing authorization validation in the `upload_avatar()` function, which accepts an attacker-controlled `user_id` parameter from the POST request body and uses it to update user meta without verifying that the authenticated requester owns or has permission to modify the target account. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the profile avatar of any arbitrary user on the site, including administrators, by supplying a target `user_id` in the request body to the `/wp-json/app-builder/v1/upload-avatar` endpoint.
Affected WordPress components
-
App Builder – Create Native Android & iOS Apps On The Flight Plugin · app-builderUp to and including 5.6.0View on WordPress.org
A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.
Affected products and versions
- appcheap App Builder – Create Native Android & iOS Apps On The Flight — Up to and including 5.6.0
References
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/app-builder/tags/5.5.10/includes/Di/Service/Auth/UploadAvatar.php#L161
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/app-builder/tags/5.5.10/includes/Di/Service/Auth/UploadAvatar.php#L80
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/app-builder/tags/5.5.10/includes/Traits/Permission.php#L33
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/app-builder/tags/5.6.0/includes/Di/Service/Auth/UploadAvatar.php#L161
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/app-builder/tags/5.6.0/includes/Di/Service/Auth/UploadAvatar.php#L80
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/app-builder/tags/5.6.0/includes/Traits/Permission.php#L33
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/app-builder/trunk/includes/Di/Service/Auth/UploadAvatar.php#L161
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/app-builder/trunk/includes/Di/Service/Auth/UploadAvatar.php#L80
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/app-builder/trunk/includes/Traits/Permission.php#L33
- www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/2d532ffc-c6f1-41e3-9a59-0706802ab8e2?source=cve
- nvd.nist.gov Official NVD record