Build App Online <= 1.0.23 - Missing Authorization to Arbitrary Post Author Modification via 'build-app-online-update-vendor-product' AJAX Action
| CVE | CVE-2026-3651 |
|---|---|
| CVSS | 5.3 (Medium) |
| Publicly Published | March 20, 2026 |
| Last Updated | March 21, 2026 |
| Researchers |
Ronnachai Sretawat Na Ayutaya (Simonhaskelly)
- Reconix Co., Ltd.
Ronnachai Chaipha (rxnr) - Reconix Co., Ltd. |
Description
The Build App Online plugin for WordPress is vulnerable to unauthorized access in all versions up to, and including, 1.0.23. This is due to the plugin registering the 'build-app-online-update-vendor-product' AJAX action via wp_ajax_nopriv_ without proper authentication checks, capability verification, or nonce validation in the update_vendor_product() function. The function accepts a user-supplied post ID from the request and calls wp_update_post() to modify the post_author field without validating whether the user has permission to modify the specified post. This makes it possible for unauthenticated attackers to modify the post_author of arbitrary posts to 0 (orphaning posts from their legitimate authors), or for authenticated attackers to claim ownership of any post by setting themselves as the author.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
Share
Vulnerability Details for Build App Online
| Software Type | Plugin |
|---|---|
| Software Slug | build-app-online (view on wordpress.org) |
| Patched? | No |
| Remediation | No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement. |
| Affected Version |
|
Recent vulnerabilities in Build App Online
| # | Title | CVE ID | CVSS | Researchers | Date |
|---|---|---|---|---|---|
| 1 | Build App Online <= 1.0.23 - Cross-Site Request Forgery | CVE-2025-53249 | theviper17y | August 14, 2025 | |
| 2 | Build App Online <= 1.0.23 - Unauthenticated Local File Inclusion | CVE-2025-32577 | LVT-tholv2k | April 9, 2025 | |
| 3 | Build App Online <= 1.0.23 - Unauthenticated Local File Inclusion | CVE-2024-49649 | Dimas Maulana | January 6, 2025 | |
| 4 | Build App Online <= 1.0.22 - Cross-Site Request Forgery | CVE-2024-53751 | ardias | November 28, 2024 | |
| 5 | Build App Online <= 1.0.21 - Authentication Bypass via Header | CVE-2023-51478 | Rafie Muhammad, István Márton | December 27, 2023 | |
| 6 | Build App Online <= 1.0.20 - Missing Authorization Authenticated(Subscriber+) Arbitrary Options Update | CVE-2023-51479 | Rafie Muhammad | December 27, 2023 | |
| 7 | Build App Online <= 1.0.22 - Account Takeover via Weak Password Reset Mechanism | CVE-2023-7264 | Ram | December 27, 2023 | |
| 8 | Build App Online <= 1.0.18 - Unauthenticated SQL Injection | CVE-2022-3241 | Francesco Marano, Donato Di Pasquale | December 6, 2022 |
This record contains material that is subject to copyright.
Copyright 2012-2026 Defiant Inc.
License: Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy. Read more.
Copyright 1999-2026 The MITRE Corporation
License: CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. Read more.
Have information to add, or spot any errors? Contact us at wfi-support@wordfence.com so we can make any appropriate adjustments.
Did you know Wordfence Intelligence provides free personal and commercial API access to our comprehensive WordPress vulnerability database, along with a free webhook integration to stay on top of the latest vulnerabilities added and updated in the database? Get started today!
Learn moreWant to get notified of the latest vulnerabilities that may affect your WordPress site?
Install Wordfence on your site today to get notified immediately if your site is affected by a vulnerability that has been added to our database.
The Wordfence Intelligence WordPress vulnerability database is completely free to access and query via API. Please review the documentation on how to access and consume the vulnerability data via API.
Documentation