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.
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Fixes
Solution
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Workaround
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References
History
Wed, 05 Aug 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Themeruby
Themeruby easy Post Submission – Frontend Posting, Guest Publishing & Submit Content For Wordpress Wordpress Wordpress wordpress |
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| Vendors & Products |
Themeruby
Themeruby easy Post Submission – Frontend Posting, Guest Publishing & Submit Content For Wordpress Wordpress Wordpress wordpress |
Wed, 05 Aug 2026 08:15:00 +0000
| Type | Values Removed | Values Added |
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| 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. | |
| Title | Easy Post Submission <= 2.3.0 - Missing Authorization | |
| Weaknesses | CWE-862 | |
| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: Wordfence
Published:
Updated: 2026-08-05T07:39:20.872Z
Reserved: 2026-03-19T15:28:20.572Z
Link: CVE-2026-4431
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OpenCVE Enrichment
Updated: 2026-08-05T10:17:51Z
Weaknesses