CVE-2026-66427 in WP Google Review Slider Plugin
Summary
by MITRE • 07/27/2026
Administrator SQL Injection in WP Google Review Slider <= 18.4 versions.
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Analysis
by VulDB Data Team • 07/27/2026
The WP Google Review Slider plugin for wordpress has been identified as containing a critical administrative sql injection vulnerability affecting versions up to and including 18.4. This flaw resides within the plugin's handling of user input parameters that are processed without adequate sanitization or validation, creating an avenue for authenticated attackers with administrator privileges to execute arbitrary sql commands against the underlying database. The vulnerability specifically manifests when the plugin processes certain administrative requests that involve user-supplied data, allowing malicious actors to manipulate database queries through crafted input parameters.
The technical implementation of this vulnerability stems from insufficient input validation and parameterized query execution within the plugin's backend processing logic. When administrators interact with the plugin's management interface or perform specific administrative functions, the application fails to properly escape or sanitize user-provided values before incorporating them into sql statements. This classic sql injection pattern enables attackers to inject malicious sql payloads that can be executed with the privileges of the web application's database user account. The vulnerability operates at the application layer and requires an attacker to first obtain administrative credentials, as the injection point is only accessible through authenticated administrative interfaces.
The operational impact of this vulnerability extends beyond simple data theft or modification, as successful exploitation could result in complete database compromise including unauthorized access to all stored information, potential privilege escalation within the database environment, and possible lateral movement within the compromised wordpress installation. Attackers could leverage this vulnerability to extract sensitive user credentials, modify plugin configurations, gain persistent access through backdoor creation, or even escalate privileges beyond the web application boundary to potentially compromise the entire hosting environment. The attack surface is particularly concerning because it targets administrative functionality where elevated privileges are already present, making exploitation more straightforward and impactful.
Mitigation strategies for this vulnerability should include immediate patching to version 18.5 or later where the sql injection flaws have been addressed through proper input validation and parameterized query implementation. Organizations should also implement network segmentation to limit access to administrative interfaces, enforce strong authentication controls including multi-factor authentication, and conduct regular security audits of installed wordpress plugins. The vulnerability aligns with cwe-89 which specifically addresses sql injection weaknesses in software applications, and represents a clear violation of secure coding practices that would typically be addressed through proper input sanitization and output encoding mechanisms. Additionally, this vulnerability falls under the attack technique of privilege escalation within the ATT&CK framework, as it leverages existing administrative access to expand the scope of compromise beyond normal operational boundaries.
Security teams should also consider implementing web application firewalls with sql injection detection capabilities and establish monitoring protocols for unusual administrative activities that might indicate exploitation attempts. Regular security assessments of wordpress plugin ecosystems are essential given the prevalence of such vulnerabilities in third-party components, particularly those that handle user input or database interactions. The remediation process must include thorough testing to ensure that patched versions maintain all intended functionality while eliminating the sql injection vectors that were previously present in the vulnerable codebase.