The plugin exposed the endpoint /wp-admin/admin-ajax.php with the action nicepage_activate_theme . Due to a missing current_user_can() check, any remote user—including bots and unauthenticated visitors—could trigger the function.
Some security plugins report that Nicepage may expose sensitive paths like
: Attackers do not need valid administrative credentials to target the vulnerable parameters.
The discussion of specific exploits should always be approached with caution and a strong adherence to ethical guidelines. If you're dealing with a known vulnerability like the one mentioned, prioritize reporting it to the vendor, updating affected systems, and engaging with the cybersecurity community in a responsible manner. nicepage 4.5.4 exploit
After upgrading from version 4.5.4, conduct a thorough security audit of your website:
The primary conclusion is that . The lack of a CVE provides a false sense of security. The only safe path forward is to upgrade to the latest version of the software immediately and implement a robust, layered security strategy to protect your website, your data, and your reputation.
The targets an input-sanitization flaw in the Nicepage website builder builder plugin and desktop application, potentially exposing thousands of WordPress and Joomla sites to Remote Code Execution (RCE) and Arbitrary File Upload attacks . Nicepage is a popular drag-and-drop website editor used to create custom themes and page layouts. When left unpatched, version 4.5.4 allows unauthorized users to bypass validation logic, upload malicious PHP scripts disguised as media or template assets, and fully compromise underlying web servers. The plugin exposed the endpoint /wp-admin/admin-ajax
Running this against a vulnerable Nicepage 4.5.4 installation would return the database configuration.
I can provide a step-by-step mitigation guide tailored to your specific infrastructure. Share public link
: Ensure your contact forms use modern ReCAPTCHA or anti-spam filters provided in newer Nicepage updates. The discussion of specific exploits should always be
If you use WordPress, install a security suite like Wordfence or Hide My WP Ghost to mask sensitive paths and monitor for unauthorized login attempts.
The represents a critical security risk targeting websites built using the popular Nicepage Theme and Template Builder desktop application and its corresponding content management system (CMS) plugins. Released in early 2022, Nicepage version 4.5.4 introduced several features that inadvertently left security gaps in how exported website assets handle scripts, document structures, and user inputs.
Guides on on your hosting server. Procedures for performing secure off-site backups .
: Once the script runs, the attacker gains the same permissions as the webserver, allowing them to steal database credentials, deface the site, or install permanent backdoors. Why It Matters