Executive Summary

This vulnerability is a Broken Access Control issue in the WordPress plugin "Posts Table with Search & Sort" (versions up to 1.4.10) by Barn2 Plugins. It arises from missing authorization, authentication, or nonce token checks in certain functions, which can allow unauthenticated users to perform actions that should be restricted to higher-privileged users. It is classified under OWASP Top 10 category A1: Broken Access Control and has a low severity with a CVSS score of 5.3. [1]

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Impact Analysis

This vulnerability could allow unauthenticated users to perform actions reserved for privileged users, potentially leading to unauthorized access or manipulation of data within the plugin. However, the impact is considered low severity and the vulnerability is unlikely to be widely exploited. Users are advised to update to version 1.4.11 or later to mitigate the risk. [1]

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Detection Guidance

Detection of this vulnerability involves checking the version of the 'Posts Table with Search & Sort' WordPress plugin installed on your system. If the version is up to and including 1.4.10, it is vulnerable. You can detect the plugin version by running commands such as 'wp plugin list' using WP-CLI or by inspecting the plugin files directly. There are no specific network commands provided to detect exploitation attempts. Monitoring for unauthorized access or actions reserved for higher-privileged users without authentication may also help identify exploitation. [1]

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Mitigation Strategies

Immediate mitigation steps include updating the 'Posts Table with Search & Sort' plugin to version 1.4.11 or later, where the vulnerability is fixed. Enabling auto-updates for this plugin is also recommended. Additionally, applying virtual patching (vPatch) offered by Patchstack can provide automatic mitigation before official patches are applied. If you suspect compromise, seek professional incident response. [1]

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