CVE-2026-4431
No known patch is available for this vulnerability.
The affected plugin has not been updated on WordPress.org since before this CVE was disclosed; the latest installable version is still vulnerable. If you have the affected software installed, you should uninstall or replace it rather than wait for an update.
Description
The Easy Post Submission plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the create_post() function in all versions up to, and including, 2.3.0. This is due to the rbsm_submit_post AJAX action being registered for unauthenticated users via wp_ajax_nopriv_rbsm_submit_post without any authorization checks when a postId parameter is supplied. This makes it possible for unauthenticated attackers to modify the title, content, excerpt, categories, and tags of arbitrary posts, as well as change the post status to draft (effectively unpublishing them) via the 'postId' parameter.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <=2.3.0
Patches
Vulnerability mechanics
References
5- plugins.trac.wordpress.org/browser/easy-post-submission/tags/2.2.0/includes/client-ajax-handler.phpnvd
- plugins.trac.wordpress.org/browser/easy-post-submission/tags/2.2.0/includes/client-ajax-handler.phpnvd
- plugins.trac.wordpress.org/browser/easy-post-submission/tags/2.2.0/includes/client-ajax-handler.phpnvd
- plugins.trac.wordpress.org/changesetnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/15494ccf-7c9d-4566-9e80-2da94172a3ddnvd
News mentions
1- Wordfence Intelligence Weekly WordPress Vulnerability Report (August 3, 2026 to August 9, 2026)Wordfence Blog · Aug 14, 2026