Description
The CMP – Coming Soon & Maintenance Plugin by NiteoThemes plugin for WordPress is vulnerable to arbitrary file upload and remote code execution in all versions up to, and including, 4.1.16 via the `cmp_theme_update_install` AJAX action. This is due to the function only checking for the `publish_pages` capability (available to Editors and above) instead of `manage_options` (Administrators only), combined with a lack of proper validation on the user-supplied file URL and no verification of the downloaded file's content before extraction. This makes it possible for authenticated attackers, with Administrator-level access and above, to force the server to download and extract a malicious ZIP file from a remote attacker-controlled URL into a web-accessible directory (`wp-content/plugins/cmp-premium-themes/`), resulting in remote code execution. Due to the lack of a nonce for Editors, they are unable to exploit this vulnerability.
INFO
Published Date :
2026-04-18T03:37:04.707Z
Last Modified :
2026-04-20T13:46:08.222Z
Source :
Wordfence
AFFECTED PRODUCTS
The following products are affected by CVE-2026-6518 vulnerability.
| Vendors | Products |
|---|---|
| Niteo |
|
| Wordpress |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-6518.
