Site backup disclosure via unauthorized AJAX request
Published Jul 17, 2026 · Updated Jul 17, 2026
Sensitive information exposure in pCloud WP Backup 2.0.3 and earlier allows remote authenticated users to download full-site backups. The wp2pcl_ajax_process_request_inner AJAX handler accepts subscriber-level start_backup requests without an administrator capability or nonce check, generates an archive, and leaves it under an HTTP-accessible tmp/ path at a predictable URL. A subscriber account is required to trigger generation, but unauthenticated visitors who know the URL can retrieve database credentials, secret salts, and the PHP source tree.
Summary
What happened
Sensitive information exposure in pCloud WP Backup 2.0.3 and earlier allows remote authenticated users to download full-site backups. The wp2pcl_ajax_process_request_inner AJAX handler accepts subscriber-level start_backup requests without an administrator capability or nonce check, generates an archive, and leaves it under an HTTP-accessible tmp/ path at a predictable URL. A subscriber account is required to trigger generation, but unauthenticated visitors who know the URL can retrieve database credentials, secret salts, and the PHP source tree.
The record
- CVE
- CVE-2026-14503
- Published
- Jul 17, 2026
- Updated
- Jul 17, 2026
- Vendor
- pCloud
- Product
- pCloud WP Backup
- Classifications
- CWE-200, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 17, 2026CVE publishedPublication date reported by the CVE source.
- Jul 17, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=0 <=2.0.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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