CVE-2023-51358 in Block IPs for Gravity Forms Plugin
Summary
by MITRE • 12/29/2023
Cross-Site Request Forgery (CSRF) vulnerability in Bright Plugins Block IPs for Gravity Forms.This issue affects Block IPs for Gravity Forms: from n/a through 1.0.1.
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Analysis
by VulDB Data Team • 01/21/2024
The Cross-Site Request Forgery vulnerability identified as CVE-2023-51358 resides within the Bright Plugins Block IPs for Gravity Forms plugin, representing a critical security weakness that undermines the integrity of web applications relying on this specific plugin version. This vulnerability enables attackers to perform unauthorized actions on behalf of authenticated users, exploiting the fundamental flaw in how the plugin handles cross-site requests and user sessions. The affected range spans from version n/a through 1.0.1, indicating that any installation within this version spectrum remains susceptible to exploitation. The vulnerability specifically targets the plugin's inability to properly validate and verify the origin of requests, creating a pathway for malicious actors to manipulate user sessions and execute unauthorized administrative functions.
The technical implementation of this CSRF flaw stems from the absence of proper anti-forgery tokens or origin validation mechanisms within the plugin's request processing pipeline. When users authenticate to their Gravity Forms installations, the plugin fails to enforce strict validation of request sources, allowing attackers to craft malicious requests that appear legitimate to the application server. This weakness aligns with CWE-352, which specifically addresses Cross-Site Request Forgery vulnerabilities, where the application does not sufficiently verify that requests originate from authenticated users. The vulnerability operates at the application layer, potentially affecting user accounts, form configurations, and administrative settings within Gravity Forms installations. Attackers can exploit this by tricking authenticated users into visiting malicious websites or clicking on compromised links that automatically submit requests to the vulnerable plugin endpoints.
The operational impact of this vulnerability extends beyond simple data manipulation, potentially allowing attackers to completely compromise user accounts and administrative privileges within Gravity Forms installations. An attacker could leverage this CSRF vulnerability to block legitimate IP addresses, modify form settings, or even gain unauthorized access to sensitive user data stored within the Gravity Forms system. The attack vector typically involves social engineering tactics where users are诱导 to click on malicious links or visit compromised websites while authenticated to their Gravity Forms accounts. This vulnerability particularly affects WordPress environments where Bright Plugins Block IPs for Gravity Forms is installed, potentially exposing thousands of installations to unauthorized modifications. The impact is amplified because Gravity Forms serves as a critical component for form handling and data collection, making any compromise of the plugin's security directly affect user trust and data integrity.
Mitigation strategies for CVE-2023-51358 must focus on immediate plugin updates to versions that address the CSRF implementation flaw, as well as implementing additional defensive measures. Organizations should prioritize updating to the latest available version of Block IPs for Gravity Forms that contains proper anti-forgery token implementations and request origin validation. Network-level protections such as implementing Content Security Policy headers and enforcing strict referer validation can provide additional defense-in-depth measures. The vulnerability demonstrates the importance of maintaining current plugin versions and implementing regular security audits of WordPress installations. Security teams should also consider implementing web application firewalls that can detect and block suspicious request patterns associated with CSRF attacks. According to ATT&CK framework category T1566, this vulnerability represents a social engineering technique that leverages user trust to execute malicious actions, making user education and awareness programs essential components of the overall security strategy. The incident underscores the critical need for developers to implement proper CSRF protection mechanisms from the initial design phase, as outlined in secure coding practices recommended by OWASP and NIST guidelines.