CVE-2026-7638

MEDIUM EPSS 22.3%
Published May 2, 20262mo ago · Modified Jun 17, 20262w ago
5.3 CVSS 3.1
Medium
Find Similar
Published May 2, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
22.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-639

References 10

  • 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
  • wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/2d532ffc-c6f1-41e3-9a59-0706802ab8e2?source=cve

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.