cvedb.io
CVE-2026-4431
CRITICAL · CVSS 9.1
EPSS exploitation probability: 0%
Published 2026-08-05T08:16:33.457 · Last modified 2026-08-05T08:16:33.457

Summary

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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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.