CVE-2026-28001 in Directory Kit Plugin
Summary
by MITRE • 08/13/2026
Unauthenticated SQL Injection in WP Directory Kit <= 1.5.4 versions.
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Analysis
by VulDB Data Team • 08/13/2026
The WP Directory Kit plugin for wordpress presents a critical unauthenticated sql injection vulnerability affecting versions 1.5.4 and earlier. This flaw resides within the plugin's handling of user input parameters that are directly incorporated into sql query constructions without proper sanitization or parameterization. The vulnerability specifically manifests when the plugin processes certain GET or POST parameters related to directory listings, search functionality, or administrative operations. Attackers can exploit this weakness by crafting malicious requests that inject arbitrary sql commands into the database layer, potentially allowing them to extract sensitive information, modify database contents, or even escalate privileges within the wordpress environment.
The technical implementation of this vulnerability stems from improper input validation and sanitization practices within the plugin's core codebase. When user-supplied parameters reach the sql execution points, they are not properly escaped or bound as parameters, creating an environment where malicious payloads can be interpreted as part of the sql command structure rather than simple data values. This type of vulnerability directly maps to cwe-89 which categorizes improper neutralization of special elements used in sql commands, and aligns with attack techniques described in the mitre att&ck framework under initial access and execution phases. The flaw is particularly dangerous because it requires no authentication credentials to exploit, making it accessible to any attacker with knowledge of the target system's wordpress installation.
The operational impact of this vulnerability extends far beyond simple data theft or modification. An attacker could potentially gain complete control over the wordpress database, extract user credentials, modify content, or establish persistent backdoors through the compromised plugin. Given that directory kit is designed to manage business listings and user data, the exposed information might include sensitive personal details, contact information, or business-related data that could be monetized or used for further attacks. The vulnerability also poses risks to the overall wordpress installation security since successful exploitation often leads to privilege escalation opportunities that can compromise the entire web application stack.
Mitigation strategies should focus on immediate patching of the vulnerable plugin versions to 1.5.5 or later, which contain proper input sanitization and parameterized query implementations. System administrators should implement network-level protections such as web application firewalls to detect and block common sql injection patterns targeting known vulnerable parameters. Additionally, regular security audits of wordpress plugins and themes should be conducted to identify similar vulnerabilities in other third-party components. The remediation process must include comprehensive database access logging to detect suspicious activities and proper input validation mechanisms that align with secure coding practices recommended by owasp and other security organizations. Organizations should also consider implementing application whitelisting controls and regularly updating their security monitoring tools to detect exploitation attempts of this class of vulnerability.