Easy Post Submission <= 2.3.0 - Missing Authorization
| CVE | CVE-2026-4431 |
|---|---|
| CVSS | 9.1 (Critical) |
| Publicly Published | August 4, 2026 |
| Last Updated | August 5, 2026 |
| Researcher |
Md. Moniruzzaman Prodhan (NomanProdhan)
- Knight Squad
|
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.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for Easy Post Submission – Frontend Posting, Guest Publishing & Submit Content for WordPress
| Software Type | Plugin |
|---|---|
| Software Slug | easy-post-submission (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 2.4.0, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Easy Post Submission – Frontend Posting, Guest Publishing & Submit Content for WordPress
| # | Title | CVE ID | CVSS | Researchers | Date |
|---|---|---|---|---|---|
| 1 | Easy Post Submission – Frontend Posting, Guest Publishing & Submit Content for WordPress <= 2.4.0 - Missing Authorization | CVE-2026-22479 | Doan Dinh Van (d52v) | March 4, 2026 | |
| 2 | Easy Post Submission <= 1.7.0 - Unauthenticated Sensitive Information Exposure | CVE-2025-62062 | Nabil Irawan | October 16, 2025 |
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