CVE-2026-59529 in Ebook Store Plugin
Summary
by MITRE • 07/27/2026
Unauthenticated Sensitive Data Exposure in Ebook Store <= 6.19 versions.
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Analysis
by VulDB Data Team • 07/27/2026
This vulnerability represents a critical security flaw in the Ebook Store plugin affecting versions up to and including 6.19, where unauthenticated users can access sensitive data through improper access controls. The issue stems from insufficient authentication checks within the plugin's data retrieval mechanisms, allowing any visitor to obtain confidential information without requiring valid credentials or administrative privileges.
The technical implementation of this vulnerability involves the plugin's failure to properly validate user authentication status before serving sensitive data endpoints. Attackers can exploit this weakness by directly accessing specific API routes or data export functions that should only be available to authenticated administrators or authorized users. This misconfiguration creates an information disclosure channel where personal customer details, order histories, payment information, and other confidential data become accessible through simple HTTP requests.
From an operational impact perspective, this vulnerability exposes organizations to significant risks including data breaches, regulatory compliance violations, and potential legal consequences under data protection regulations such as gdpr and ccpa. The unauthenticated access allows threat actors to systematically harvest large volumes of sensitive customer information, potentially enabling identity theft, financial fraud, and other malicious activities. The vulnerability affects the confidentiality aspect of the security triad, as it violates the principle that sensitive information should only be accessible to authorized individuals.
The weakness aligns with CWE-200, which describes improper exposure of sensitive information, and corresponds to ATT&CK technique T1213.002 for data from information repositories. This vulnerability demonstrates poor input validation and access control implementation within the web application layer, where the plugin fails to enforce proper authorization checks before processing requests for sensitive data. Organizations should immediately implement authentication requirements for all data access points and ensure that proper user role verification occurs before any sensitive information is returned.
Mitigation strategies include upgrading to the patched version of Ebook Store, implementing additional authentication layers at the web server level, configuring proper access controls through .htaccess files or similar mechanisms, and conducting regular security audits of plugin components. Security measures should also include monitoring for unauthorized data access attempts and implementing rate limiting to prevent automated harvesting of sensitive information. Organizations must also review their overall plugin ecosystem to identify similar vulnerabilities that might exist in other third-party components.