CVE-2026-3651: CWE-862 Missing Authorization in hakeemnala Build App Online
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.
AI Analysis
Technical Summary
CVE-2026-3651 is a missing authorization vulnerability (CWE-862) in the Build App Online WordPress plugin by hakeemnala. The plugin registers the 'build-app-online-update-vendor-product' AJAX action via wp_ajax_nopriv_ without enforcing authentication, capability checks, or nonce validation. The update_vendor_product() function accepts a user-supplied post ID and calls wp_update_post() to change the post_author field without verifying user permissions. This allows unauthenticated attackers to modify post authorship arbitrarily, either orphaning posts or enabling authenticated users to claim posts they do not own.
Potential Impact
The vulnerability allows unauthorized modification of the post_author field in WordPress posts. Unauthenticated attackers can orphan posts by setting the author to 0, disrupting content ownership. Authenticated attackers can claim ownership of any post by setting themselves as the author. There is no impact on confidentiality or availability reported, but integrity of post ownership is compromised.
Mitigation Recommendations
No official patch or fix is currently available for this vulnerability. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, restrict access to the AJAX endpoint if possible or disable the Build App Online plugin to prevent exploitation.
CVE-2026-3651: CWE-862 Missing Authorization in hakeemnala Build App Online
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-3651 is a missing authorization vulnerability (CWE-862) in the Build App Online WordPress plugin by hakeemnala. The plugin registers the 'build-app-online-update-vendor-product' AJAX action via wp_ajax_nopriv_ without enforcing authentication, capability checks, or nonce validation. The update_vendor_product() function accepts a user-supplied post ID and calls wp_update_post() to change the post_author field without verifying user permissions. This allows unauthenticated attackers to modify post authorship arbitrarily, either orphaning posts or enabling authenticated users to claim posts they do not own.
Potential Impact
The vulnerability allows unauthorized modification of the post_author field in WordPress posts. Unauthenticated attackers can orphan posts by setting the author to 0, disrupting content ownership. Authenticated attackers can claim ownership of any post by setting themselves as the author. There is no impact on confidentiality or availability reported, but integrity of post ownership is compromised.
Mitigation Recommendations
No official patch or fix is currently available for this vulnerability. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, restrict access to the AJAX endpoint if possible or disable the Build App Online plugin to prevent exploitation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-03-06T16:26:41.553Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69be1810f4197a8e3b7843b7
Added to database: 3/21/2026, 4:01:20 AM
Last enriched: 4/9/2026, 6:49:15 PM
Last updated: 5/1/2026, 12:57:12 PM
Views: 39
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