CVE-2023-27570 in eo_tags Package
Summary
by MITRE • 03/21/2023
The eo_tags package before 1.4.19 for PrestaShop allows SQL injection via a crafted _ga cookie.
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Analysis
by VulDB Data Team • 11/18/2025
The eo_tags package for PrestaShop contains a critical sql injection vulnerability that affects versions prior to 1.4.19. This vulnerability specifically manifests through manipulation of the _ga cookie parameter which is commonly used for google analytics tracking within web applications. The flaw represents a classic sql injection attack vector where maliciously crafted cookie data can be processed without proper sanitization or parameterization, allowing attackers to inject arbitrary sql commands into the database layer. The vulnerability falls under the category of input validation failures that enable unauthorized database access and manipulation.
The technical implementation of this vulnerability stems from improper handling of user-supplied data within the cookie processing logic. When the _ga cookie value is parsed and incorporated into sql queries, the application fails to employ proper parameterized queries or input sanitization techniques. This creates an environment where attackers can craft malicious cookie values containing sql payload sequences that bypass normal validation mechanisms. The vulnerability is particularly concerning because cookies are routinely handled by web applications without extensive security checks, making them an attractive target for exploitation. According to CWE standards, this vulnerability maps to CWE-89 which specifically addresses sql injection flaws in software applications.
The operational impact of this vulnerability extends beyond simple data theft to encompass complete database compromise and potential system takeover. An attacker who successfully exploits this vulnerability could execute unauthorized database operations including data extraction, modification, deletion, and potentially gain elevated privileges within the application environment. The PrestaShop platform, being an e-commerce solution, would expose sensitive customer information, payment data, and business records to unauthorized access. This vulnerability could also serve as a stepping stone for further attacks within the network infrastructure, particularly if the database server shares resources with other critical systems. The attack surface is amplified by the fact that cookies are automatically transmitted with every request, making exploitation relatively straightforward.
Mitigation strategies for this vulnerability require immediate patching of the eo_tags package to version 1.4.19 or later where proper input validation and parameterized query handling has been implemented. Organizations should also implement cookie validation mechanisms that sanitize and verify all incoming cookie data before processing. Network-level protections such as web application firewalls can provide additional defense in depth by monitoring for suspicious cookie patterns and blocking known malicious payloads. Security teams should conduct comprehensive vulnerability assessments to ensure no other components within the PrestaShop installation are susceptible to similar input validation flaws. The remediation process should include thorough testing to verify that the patch does not introduce regressions in functionality while ensuring all cookie handling operations properly sanitize user inputs according to industry best practices. This vulnerability demonstrates the critical importance of maintaining up-to-date software components and implementing robust input validation across all application layers as recommended by the ATT&CK framework's defensive strategies against command and control operations.