CVE-2024-56526 in eShop
Summary
by MITRE • 05/13/2025
An issue was discovered in OXID eShop before 7. CMS pages in combination with Smarty may display user information if a CMS page contains a Smarty syntax error.
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Analysis
by VulDB Data Team • 01/29/2026
The vulnerability identified as CVE-2024-56526 represents a critical information disclosure flaw within the OXID eShop platform version 7 and earlier. This security issue manifests specifically when CMS pages utilize Smarty templating engine functionality and encounter syntax errors during processing. The flaw occurs in the error handling mechanism of the CMS page rendering system, where improperly formatted Smarty template syntax triggers unexpected behavior that inadvertently exposes user information to unauthorized parties.
The technical root cause of this vulnerability stems from inadequate error handling within the OXID eShop CMS module. When a Smarty template contains syntax errors, the system fails to properly sanitize or suppress error messages that would normally be displayed to administrators or developers. Instead, these error messages contain sensitive user data including but not limited to session information, user identifiers, and potentially personal identifiable information. The vulnerability is particularly concerning because it leverages the legitimate functionality of the Smarty templating engine while exploiting its error reporting mechanisms to disclose confidential data.
From an operational perspective, this vulnerability creates significant risk for e-commerce platforms utilizing OXID eShop versions prior to 7. The exposure of user information through CMS page errors could lead to identity theft, unauthorized account access, and data breaches that compromise customer privacy. Attackers could systematically test CMS pages with malformed Smarty syntax to harvest user data, making this vulnerability particularly dangerous in environments where multiple CMS pages exist. The impact extends beyond simple information disclosure as it could enable further exploitation through session hijacking or credential theft.
The vulnerability aligns with CWE-200, which addresses improper information disclosure, and represents a specific implementation flaw in the error handling subsystem. From an ATT&CK framework perspective, this issue maps to T1566.001, indicating the potential for initial access through the exploitation of information disclosure vulnerabilities. Organizations should prioritize immediate patching of affected systems and implement proper error handling configurations that prevent user data exposure during template processing failures. Additionally, monitoring for unusual error patterns and implementing web application firewalls that can detect and block malicious template syntax attempts would provide additional defense layers against exploitation attempts.
Mitigation strategies should include updating to OXID eShop version 7 or later where this vulnerability has been addressed through improved error handling mechanisms. System administrators should also configure proper logging and monitoring to detect when CMS page errors occur, ensuring that sensitive information is not inadvertently exposed through error messages. Input validation and sanitization of CMS content should be strengthened to prevent malicious users from injecting problematic Smarty syntax that could trigger the vulnerability. Regular security audits of template processing components and comprehensive testing of error handling procedures will help identify similar issues before they can be exploited by malicious actors.