CRITICAL 9.1 NVD
CVE-2026-4431
The Easy Post Submission plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `create_post()` functi
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.
References
- https://plugins.trac.wordpress.org/browser/easy-post-submission/tags/2.2.0/includes/client
- https://plugins.trac.wordpress.org/browser/easy-post-submission/tags/2.2.0/includes/client
- https://plugins.trac.wordpress.org/browser/easy-post-submission/tags/2.2.0/includes/client
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3488045%4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/15494ccf-7c9d-4566-9e80-2da94172
This critical severity vulnerability with a CVSS score of 9.1 was published on 2026-08-05 via NVD.
Risk Timeline
CVE Disclosed2026-08-05 · -1 days ago
Remediation Resources
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