CVE-2022-34867 in WP Libre Form 2 plugin
Summary
by MITRE • 09/06/2022
Unauthenticated Sensitive Information Disclosure vulnerability in WP Libre Form 2 plugin <= 2.0.8 at WordPress allows attackers to list and delete submissions. Affects only versions from 2.0.0 to 2.0.8.
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Analysis
by VulDB Data Team • 10/13/2022
The CVE-2022-34867 vulnerability represents a critical security flaw in the WP Libre Form 2 WordPress plugin affecting versions between 2.0.0 and 2.0.8. This unauthenticated sensitive information disclosure vulnerability exposes the plugin to unauthorized access and manipulation of user-submitted data, creating significant risks for website administrators and their visitors. The vulnerability stems from inadequate authentication mechanisms within the plugin's submission handling functionality, allowing any remote attacker to exploit the system without requiring valid credentials or administrative privileges.
The technical flaw manifests in the plugin's failure to implement proper access controls for submission listing and deletion operations. Attackers can exploit this weakness to enumerate all form submissions stored within the WordPress database, potentially gaining access to sensitive user information including personal details, contact information, and any confidential data submitted through the affected forms. The vulnerability specifically impacts the plugin's administrative endpoints that handle submission management, where the absence of authentication checks creates an attack surface that can be leveraged for data exfiltration and malicious deletion of form responses.
From an operational perspective, this vulnerability poses severe risks to organizations relying on the WP Libre Form 2 plugin for data collection and user interaction. The unauthenticated nature of the exploit means that malicious actors can systematically harvest sensitive information without detection, potentially leading to data breaches, privacy violations, and compliance failures. The ability to delete submissions further amplifies the damage potential, as attackers can not only steal data but also compromise data integrity and availability, potentially destroying evidence of user interactions or damaging the trust relationship between organizations and their website visitors.
The vulnerability aligns with CWE-284 (Improper Access Control) and represents a clear violation of the principle of least privilege in cybersecurity practices. According to ATT&CK framework, this issue maps to T1213 (Data from Information Repositories) and T1485 (Data Destruction) categories, demonstrating how the vulnerability can be leveraged for both information harvesting and destructive operations. Organizations should immediately implement mitigations including immediate plugin version updates to 2.0.9 or later, where the authentication mechanisms have been properly implemented. Additionally, administrators should conduct thorough security audits of their WordPress installations, review access logs for suspicious activity, and consider implementing additional security layers such as web application firewalls to monitor and block exploitation attempts. The incident underscores the critical importance of maintaining up-to-date security patches and conducting regular vulnerability assessments to protect against such unauthenticated access exploits that can compromise entire web applications.