CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionNVD
Missing Authorization vulnerability in QuantumCloud ChatBot chatbot allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects ChatBot: from n/a through <= 7.7.3.
AnalysisAI
Broken access control in QuantumCloud ChatBot plugin for WordPress through version 7.7.3 allows authenticated attackers with low privileges to exploit misconfigured authorization checks, potentially leading to high-impact data breaches, unauthorized modifications, and service disruption. EPSS scoring indicates low exploitation probability (0.05%, 15th percentile), and no public exploit identified at time of analysis. The vulnerability stems from missing authorization controls (CWE-862), requiring only network access and low-privilege credentials with no user interaction, making it readily exploitable once an account is compromised.
Technical ContextAI
This vulnerability affects the ChatBot plugin by QuantumCloud for WordPress installations. The root cause is classified as CWE-862 (Missing Authorization), a common web application security flaw where the application fails to properly verify whether users have permission to perform requested actions. In WordPress plugin architecture, this typically manifests when AJAX handlers, REST API endpoints, or administrative functions lack capability checks (such as WordPress's current_user_can() or check_admin_referer()). The plugin's access control mechanisms are improperly configured, allowing authenticated users to bypass intended permission boundaries and access functionality or data restricted to higher privilege levels. The vulnerability exists across all versions up to and including 7.7.3, suggesting a fundamental design flaw in the authorization framework rather than a recent regression.
Affected ProductsAI
The vulnerability affects QuantumCloud ChatBot plugin for WordPress, specifically all versions from the initial release through version 7.7.3 inclusive. This is a third-party WordPress plugin available through the WordPress.org plugin repository, used to add AI-powered chatbot functionality to WordPress websites. The broad version range suggests the authorization flaw has existed since the plugin's early development. Affected installations include any WordPress site running the vulnerable plugin versions with user registration enabled or where low-privilege accounts exist. The vendor advisory and technical details are available through Patchstack's vulnerability database at https://patchstack.com/database/Wordpress/Plugin/chatbot/vulnerability/wordpress-chatbot-plugin-7-3-0-broken-access-control-vulnerability.
RemediationAI
Organizations should immediately upgrade the QuantumCloud ChatBot plugin to version 7.7.4 or later, which addresses the authorization bypass vulnerability. The update can be performed through the WordPress admin dashboard under Plugins > Updates, or by downloading the latest version from the WordPress.org plugin repository. As an interim mitigation for environments where immediate patching is not feasible, administrators should review and restrict user registration settings, audit existing low-privilege user accounts for legitimacy, implement additional authentication layers (such as two-factor authentication), and monitor access logs for unusual chatbot-related activity from low-privilege accounts. Organizations should also review their chatbot configuration to ensure sensitive data is not accessible through the plugin interface. Consider temporarily disabling the plugin if it processes highly sensitive information until patching is complete. Complete remediation guidance is available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/chatbot/vulnerability/wordpress-chatbot-plugin-7-3-0-broken-access-control-vulnerability.
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