CVE-2026-14503— pCloud WP Backup <= 2.0.3 - Missing Authorization on the 'start_backup' AJAX Method to Authenticated (Subscriber+) Arbitrary File Read

pCloud WP Backup <= 2.0.3 - Missing Authorization on the 'start_backup' AJAX Method to Authenticated (Subscriber+) Arbitrary File Read

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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

信息暴露

WordPress pCloud WP Backup 信息泄露漏洞

WordPress pCloud WP Backup是WordPress基金会的一款 WordPress 插件，能帮你一键备份网站的所有文件、媒体和数据库，并安全地存储在你的 pCloud 云端硬盘中。它支持手动或按计划自动备份，并可在需要时一键恢复网站。 WordPress pCloud WP Backup 2.0.3及之前版本存在信息泄露漏洞，该漏洞源于通过wp2pcl_ajax_process_request_inner操作可能导致敏感信息泄露，可能使经过身份验证的攻击者强制生成完整站点备份存档并暴

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