WordPress security changelog
MEDIUM CVE-2026-7638 Deferred

App Builder – Create Native Android & iOS Apps On The Flight: A security weakness

App Builder – Create Native Android & iOS Apps On The Flight is affected by a security weakness. Exploitation requires at least subscriber-level access. The resulting impact depends on how the affected component exposes the vulnerable operation. The published affected range is <= 5.6.0.

CVE / CNA score 5.3 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
App Builder – Create Native Android & iOS Apps On The Flight
Plugin slug
app-builder
Affected
<= 5.6.0
Safe version
> 5.6.0
Published
May 02, 2026
Weakness
CWE-639 — Authorization Bypass Through User-Controlled Key

This CVE was published May 02, 2026 and is one of 7 known issues for this plugin.

What to do

Update, patch or deactivate.

Update App Builder – Create Native Android & iOS Apps On The Flight to a release after 5.6.0, or disable and remove it until a fixed version is available.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical 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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References

Primary and upstream sources