Executive Summary

This vulnerability is a Local File Inclusion (LFI) flaw in the WordPress InPost Gallery Plugin up to version 2.1.4.5. It allows an attacker with subscriber-level privileges to include and display local files from the target website by improperly controlling the filename used in PHP include/require statements. This can expose sensitive files such as those containing database credentials, potentially leading to further compromise of the site. [1]

Useful 0 Not Useful 0

Impact Analysis

Exploiting this vulnerability can expose sensitive files on your website, including database credentials. This exposure can lead to a complete database takeover depending on your site's configuration. The vulnerability is highly dangerous and expected to be widely exploited, potentially resulting in significant security breaches and loss of data integrity. [1]

Useful 0 Not Useful 0

Detection Guidance

Detection of this Local File Inclusion vulnerability can involve monitoring for suspicious HTTP requests attempting to include local files via the InPost Gallery plugin. Since the vulnerability allows inclusion of local files through manipulated parameters, inspecting web server logs for unusual requests targeting the plugin's include or require parameters is recommended. Specific commands are not provided in the resources, but general approaches include using tools like grep to search web server logs for suspicious patterns, e.g., commands like 'grep -i "inpost-gallery" /var/log/apache2/access.log | grep ".."' to find directory traversal attempts. Additionally, using vulnerability scanners or plugin-based malware scanners may be unreliable as per the resource, so manual log inspection or professional incident response is advised. [1]

Useful 0 Not Useful 0

Mitigation Strategies

Immediate mitigation steps include applying the virtual patch (vPatch) provided by Patchstack to block attacks targeting this vulnerability until the official update can be applied. The most effective mitigation is to update the InPost Gallery plugin to version 2.1.4.6 or later, where the vulnerability is resolved. Users are strongly advised to update immediately to eliminate the risk. If the site is suspected to be compromised, professional incident response services should be sought, as plugin-based malware scanners may not reliably detect infections. [1]

Useful 0 Not Useful 0