CVE-2023-23721 in Admin Log Plugin
Summary
by MITRE • 03/20/2023
Cross-Site Request Forgery (CSRF) vulnerability in David Gwyer Admin Log plugin <= 1.50 versions.
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Analysis
by VulDB Data Team • 04/12/2023
The CVE-2023-23721 vulnerability represents a critical cross-site request forgery flaw discovered in the David Gwyer Admin Log plugin for WordPress systems. This vulnerability affects versions 1.50 and earlier, exposing WordPress installations to unauthorized administrative actions that could be executed without user consent. The flaw resides in the plugin's insufficient validation of HTTP request origins, allowing malicious actors to craft forged requests that appear legitimate to the target WordPress site. Such vulnerabilities fall under the CWE-352 category, which specifically addresses cross-site request forgery conditions where web applications fail to validate the source of HTTP requests. The issue is particularly concerning as it targets administrative functions within WordPress, potentially enabling attackers to perform sensitive operations like user management, content modification, or system configuration changes.
The technical implementation of this CSRF vulnerability stems from the plugin's failure to implement proper anti-CSRF tokens or origin validation mechanisms in its administrative endpoints. When administrators perform actions within the WordPress admin interface, the plugin processes these requests without adequately verifying that they originated from legitimate sources within the same domain. Attackers can exploit this by tricking authenticated administrators into visiting malicious websites or clicking on compromised links that automatically submit forged requests to the vulnerable plugin endpoints. The attack typically involves crafting HTTP requests that leverage the administrator's existing authentication session, effectively bypassing the need for credentials. This exploitation pattern aligns with ATT&CK technique T1566.002, which describes the use of malicious web content to perform phishing attacks that can lead to privilege escalation through CSRF vulnerabilities.
The operational impact of this vulnerability extends beyond simple data manipulation, potentially allowing full administrative control over affected WordPress installations. An attacker who successfully exploits this CSRF flaw could modify user permissions, delete content, install malicious plugins, or even gain access to sensitive system information. The vulnerability is particularly dangerous because it requires minimal user interaction beyond accessing a malicious link, making it highly effective for automated attacks. Organizations running vulnerable versions of the David Gwyer Admin Log plugin face significant risk of unauthorized system compromise, especially in environments where administrators frequently access WordPress admin panels from potentially untrusted networks. The vulnerability's persistence across multiple versions indicates a fundamental design flaw that requires immediate remediation to prevent exploitation.
Mitigation strategies for CVE-2023-23721 should prioritize immediate plugin updates to versions that address the CSRF validation issues. System administrators must ensure all instances of the affected plugin are updated to the latest release that includes proper anti-CSRF protections. Additionally, implementing web application firewalls with CSRF detection capabilities can provide an additional layer of defense. Security teams should also consider implementing Content Security Policy headers and Origin validation checks to further reduce the attack surface. Regular security audits of WordPress plugins and themes remain essential for identifying similar vulnerabilities that could be exploited in the future. Organizations should also establish monitoring procedures to detect unauthorized administrative activities that might indicate successful exploitation attempts. The vulnerability serves as a reminder of the critical importance of maintaining up-to-date security measures in web applications, particularly those handling administrative functions that could provide attackers with elevated privileges and system control.