CVE-2026-14503

Vulnerability Description

The pCloud WP Backup plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.0.3 via the wp2pcl_ajax_process_request_inner. This makes it possible for authenticated attackers, with subscriber-level access and above, to extract force generation of a full-site backup archive written to a publicly accessible directory, exposing wp-config.php database credentials, WordPress secret salts, and the complete PHP source tree. The resulting archive is deposited in the plugin's unprotected tmp/ directory at a predictable URL, making the extracted data accessible to unauthenticated visitors once the backup is triggered.

CVSS Score

Related Weaknesses (CWE)

References

• https://plugins.trac.wordpress.org/browser/pcloud-wp-backup/tags/2.0.2/Pcloud/Cl
• https://plugins.trac.wordpress.org/browser/pcloud-wp-backup/tags/2.0.2/pcloud-wp
• https://plugins.trac.wordpress.org/browser/pcloud-wp-backup/tags/2.0.2/pcloud-wp
• https://plugins.trac.wordpress.org/browser/pcloud-wp-backup/tags/2.0.2/pcloud-wp
• https://plugins.trac.wordpress.org/browser/pcloud-wp-backup/tags/2.0.2/pcloud-wp
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3597399%40pcloud-wp-b
• https://www.wordfence.com/threat-intel/vulnerabilities/id/0b301c6e-a3c5-4435-9bc