CVE-2025-22347 in BSK Forms Blacklist Plugin
Summary
by MITRE • 01/07/2025
Cross-Site Request Forgery (CSRF) vulnerability in BannerSky.com BSK Forms Blacklist allows Blind SQL Injection.This issue affects BSK Forms Blacklist: from n/a through 3.9.
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Analysis
by VulDB Data Team • 02/15/2025
The vulnerability identified as CVE-2025-22347 represents a critical security flaw in the BSK Forms Blacklist plugin developed by BannerSky.com, specifically targeting versions ranging from an unspecified initial version through 3.9. This vulnerability combines elements of cross-site request forgery and blind sql injection, creating a particularly dangerous threat vector for affected systems. The flaw resides within the plugin's handling of user input and request processing mechanisms, where insufficient validation and sanitization allows malicious actors to exploit the system's trust relationship with legitimate users. The combination of csrf and sql injection capabilities significantly amplifies the potential impact, as attackers can first establish unauthorized requests and then leverage those requests to execute database queries without proper authorization.
The technical implementation of this vulnerability stems from the plugin's failure to properly implement anti-csrf tokens and adequate input validation mechanisms. When users interact with the plugin's forms or administrative interfaces, the system does not sufficiently verify the authenticity of requests originating from legitimate users versus malicious actors. This weakness allows attackers to craft malicious requests that appear to come from authenticated users, thereby bypassing standard security controls. The blind sql injection component emerges from inadequate parameter sanitization within the plugin's database query execution paths, where user-supplied data is directly incorporated into sql statements without proper escaping or parameterization. This creates opportunities for attackers to infer database structure and contents through carefully crafted requests that produce different response behaviors based on sql query outcomes.
The operational impact of this vulnerability extends beyond simple data compromise, as it enables attackers to potentially escalate privileges and access sensitive system information. The blind sql injection capability allows for extensive reconnaissance of the underlying database structure, potentially exposing user credentials, configuration data, and other sensitive information stored within the system. Attackers can leverage the csrf component to execute these malicious queries through legitimate user sessions, making detection more difficult and increasing the likelihood of successful exploitation. This vulnerability affects not only the immediate plugin functionality but also potentially impacts the broader WordPress installation, as compromised forms could serve as entry points for further attacks. The vulnerability's persistence across multiple versions suggests a fundamental design flaw in the plugin's security implementation that requires immediate attention.
Security mitigations for this vulnerability should focus on implementing proper csrf token validation mechanisms throughout all plugin endpoints and ensuring that all user input undergoes rigorous sanitization and parameterization before database interaction. The plugin developers must enforce strict input validation controls and implement proper output encoding to prevent malicious data from being processed as sql commands. Organizations should immediately update to patched versions of the BSK Forms Blacklist plugin when available, as this vulnerability affects versions through 3.9 according to the reported scope. System administrators should also consider implementing web application firewalls with specific rules to detect and block suspicious csrf and sql injection patterns targeting this plugin. Additionally, regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other installed plugins and themes. This vulnerability aligns with CWE-352 for cross-site request forgery and CWE-89 for sql injection, representing a classic example of how multiple vulnerability types can compound to create more severe security risks. The threat landscape for this vulnerability is further complicated by the ATT&CK framework's T1213.002 technique for data from information repositories, as successful exploitation could enable attackers to harvest sensitive data from the compromised system's database infrastructure.