CVE-2023-40558 in YouTube Showcase Plugin
Summary
by MITRE • 10/25/2023
Cross-Site Request Forgery (CSRF) vulnerability in eMarket Design YouTube Video Gallery by YouTube Showcase plugin <= 3.3.5 versions.
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Analysis
by VulDB Data Team • 10/25/2023
This cross-site request forgery vulnerability exists within the eMarket Design YouTube Video Gallery plugin for WordPress, specifically affecting versions up to and including 3.3.5. The flaw allows authenticated administrators to be tricked into executing unintended actions through maliciously crafted requests that originate from a different domain. The vulnerability stems from the absence of proper CSRF protection mechanisms within the plugin's administrative interfaces, making it possible for attackers to manipulate the plugin's functionality without the administrator's knowledge or consent. The affected plugin is designed to showcase YouTube videos on WordPress sites, but the lack of anti-CSRF token validation creates a significant security risk for sites that rely on this functionality.
The technical implementation of this vulnerability occurs when administrators interact with the plugin's administrative panels without proper validation of request origins or authenticity tokens. Attackers can craft malicious web pages or emails containing specially crafted requests that, when executed by an authenticated administrator, perform actions such as modifying video gallery settings, adding or removing videos, or altering plugin configurations. This type of vulnerability falls under CWE-352, which specifically addresses Cross-Site Request Forgery flaws in software applications. The weakness is particularly dangerous because it leverages the trust relationship between the web application and the authenticated user, allowing attackers to perform privileged actions on behalf of the administrator without their awareness.
The operational impact of this vulnerability extends beyond simple data manipulation to potentially compromise entire WordPress installations. An attacker who successfully exploits this CSRF vulnerability could gain persistent control over the YouTube gallery functionality, potentially leading to content injection attacks, defacement of the gallery, or even the installation of malicious code through modified plugin settings. The vulnerability is particularly concerning in environments where administrators frequently access the plugin interface and may be susceptible to social engineering attacks through phishing emails or compromised websites. According to ATT&CK framework, this represents a privilege escalation technique under T1078.004, where attackers leverage existing administrative access through legitimate means to expand their control.
Mitigation strategies for this vulnerability include immediate patching of the plugin to version 3.3.6 or later, which contains the necessary CSRF protection mechanisms. Administrators should also implement additional security measures such as regular security audits of installed plugins, monitoring for unauthorized configuration changes, and ensuring that only trusted administrators have access to the plugin's administrative interfaces. Network-level protections such as web application firewalls can help detect and block suspicious requests, while security headers like Content Security Policy can provide additional defense-in-depth. Organizations should also consider implementing multi-factor authentication for administrative accounts and regularly reviewing user permissions to minimize the potential impact of any successful exploitation attempts. The vulnerability demonstrates the critical importance of proper input validation and request authentication in web applications, particularly those with administrative capabilities that could be leveraged for broader system compromise.