Authorization Bypass in WP Logo Showcase Responsive Slider

Executive Summary

CVE-2023-40200 is a Broken Access Control vulnerability in the WordPress WP Logo Showcase Responsive Slider and Carousel Plugin, versions 3.6 and below.

This flaw allows unauthenticated users to bypass authorization checks and perform actions that normally require higher privileges.

The vulnerability arises from incorrectly configured access control security levels, specifically through a user-controlled key.

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Impact Analysis

Exploiting this vulnerability allows attackers to perform unauthorized actions on affected websites without authentication.

Attackers could target thousands of websites running the vulnerable plugin versions indiscriminately.

This could lead to unauthorized modifications or other malicious activities that compromise the integrity of the website.

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Mitigation Strategies

To mitigate the vulnerability in the WP Logo Showcase Responsive Slider and Carousel Plugin, you should immediately update the plugin to version 3.7 or later, where the issue has been patched.

Until you can apply the update, you can use the mitigation rule provided by Patchstack to block attacks exploiting this vulnerability.

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Compliance Impact

The vulnerability is a Broken Access Control issue that allows unauthorized users to perform actions requiring higher privileges. Such unauthorized access can lead to improper handling or exposure of sensitive data.

While the provided information does not explicitly mention compliance with standards like GDPR or HIPAA, broken access control vulnerabilities generally pose risks to data confidentiality and integrity, which are critical components of these regulations.

Therefore, if exploited, this vulnerability could potentially lead to non-compliance with regulations that mandate strict access controls and protection of personal or sensitive information.

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Detection Guidance

This vulnerability involves broken access control in the WP Logo Showcase Responsive Slider and Carousel Plugin versions 3.6 and below, allowing unauthenticated users to perform privileged actions. Detection typically involves monitoring for unauthorized access attempts or exploitation patterns targeting this plugin.

Since the vulnerability is related to authorization bypass through user-controlled keys, detection can focus on unusual HTTP requests attempting to access or manipulate plugin endpoints without proper authentication.

Specific commands are not provided in the available resources, but general approaches include:

• Using web server logs to search for suspicious requests targeting the plugin's URLs or parameters.
• Employing intrusion detection systems (IDS) or web application firewalls (WAF) with rules to detect or block known exploit patterns.
• Using tools like curl or wget to manually test access control by attempting to access plugin functions without authentication.

Patchstack provides a mitigation rule to block attacks until the plugin is updated, which can also aid in detection by logging blocked attempts.

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