CVE-2024-43269 in Backup and Restore Plugin
Summary
by MITRE • 08/27/2024
Cross-Site Request Forgery (CSRF) vulnerability in WPBackItUp Backup and Restore WordPress.This issue affects Backup and Restore WordPress: from n/a through 1.50.
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Analysis
by VulDB Data Team • 03/12/2025
The Cross-Site Request Forgery vulnerability identified as CVE-2024-43269 represents a critical security flaw within the WPBackItUp Backup and Restore WordPress plugin, specifically impacting versions ranging from the initial release through version 1.50. This vulnerability falls under the broader category of web application security issues that exploit the trust relationship between a web application and its users. The affected plugin serves as a backup solution for WordPress sites, making it a prime target for attackers seeking to compromise user data and system integrity. The vulnerability stems from insufficient validation of the origin of HTTP requests, allowing malicious actors to trick authenticated users into executing unauthorized actions within the context of their active sessions. This type of flaw directly aligns with CWE-352, which categorizes Cross-Site Request Forgery as a weakness where applications fail to validate that requests originate from legitimate sources. The vulnerability enables attackers to perform actions such as creating new backups, modifying backup configurations, or potentially accessing sensitive backup data without proper authorization.
The technical implementation of this CSRF vulnerability occurs when the plugin fails to implement proper anti-CSRF tokens or origin validation mechanisms within its administrative endpoints. When users access the WordPress admin panel and perform backup-related operations, the application should verify that requests are genuinely initiated by the authenticated user rather than being forged by an attacker. This validation typically involves implementing unique tokens that are generated per session and must be present in every request to confirm authenticity. Without these protective measures, an attacker can craft malicious web pages or emails that contain hidden forms or javascript commands that automatically submit requests to the vulnerable plugin's endpoints. These requests appear to originate from the victim's browser and are processed with their elevated privileges, effectively allowing the attacker to perform administrative actions on behalf of the legitimate user. The flaw is particularly dangerous because backup plugins often have access to sensitive data and system configurations, making them attractive targets for cybercriminals seeking to compromise entire WordPress installations.
The operational impact of this vulnerability extends beyond simple data theft, as it can lead to complete system compromise and unauthorized access to backup data that may contain sensitive user information, database credentials, or other critical system components. Attackers could potentially use this vulnerability to create malicious backups that contain malware, modify existing backup configurations to redirect backup data to attacker-controlled servers, or even delete critical backup files that would prevent system recovery in case of genuine attacks. The consequences for WordPress administrators and site owners are severe, as they may lose control over their backup systems and face potential data loss or exposure. This vulnerability particularly affects organizations that rely heavily on automated backup processes or have limited security monitoring in place, as the attack can occur without the user's knowledge or consent. The impact is further amplified by the fact that backup systems are often considered trusted components, making it easier for attackers to gain deeper access to the underlying infrastructure. According to ATT&CK framework, this vulnerability maps to T1490 - Inhibit System Recovery, where adversaries may delete or corrupt backup files to increase the impact of their attacks.
Mitigation strategies for CVE-2024-43269 should prioritize immediate plugin updates to versions that have addressed the CSRF vulnerability, as this represents the most effective defense against exploitation. Administrators should also implement additional security measures such as monitoring for unauthorized backup activities and ensuring that backup files are stored securely with appropriate access controls. The implementation of Content Security Policy headers can provide additional protection by restricting the sources from which forms and scripts can be submitted, while also enabling the use of anti-CSRF tokens throughout the application. Network-level protections such as Web Application Firewalls can help detect and block malicious requests attempting to exploit this vulnerability. Regular security audits of WordPress plugins and themes should be conducted to identify similar vulnerabilities, as this flaw demonstrates how seemingly minor security oversights in backup systems can have significant consequences. Organizations should also establish incident response procedures specifically addressing backup system compromises and maintain regular testing of backup restoration processes to ensure that recovery procedures remain effective even after potential exploitation. The vulnerability underscores the importance of maintaining up-to-date security practices and the critical need for comprehensive security testing across all components of web applications, particularly those handling sensitive data and system configurations.