Contributor XSS in WP Tab Widget <= 1.2.11

Executive Summary

This is a Cross Site Scripting (XSS) vulnerability in the WP Tab Widget WordPress plugin versions 1.2.11 and below. It allows attackers with contributor or developer privileges to inject malicious scripts into web pages. The vulnerability requires user interaction, such as clicking a malicious link, to execute.

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Detection Guidance

To detect this XSS vulnerability in the WP Tab Widget plugin, inspect WordPress sites for the plugin version 1.2.11 or below. Check for unusual scripts or redirects in user-contributed content, especially from Contributor or Developer roles. No specific commands are provided, but manual review of plugin files and user-generated content is recommended.

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Impact Analysis

An attacker could inject malicious scripts that execute when visitors access the site. This may lead to unauthorized redirects, display of unwanted advertisements, or theft of user data. The impact depends on the privileges of the exploited account.

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Compliance Impact

This vulnerability could lead to data breaches or unauthorized access, which may violate GDPR or HIPAA compliance requirements. Organizations must address it to maintain data protection standards and avoid potential legal penalties.

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Mitigation Strategies

Immediately update the WP Tab Widget plugin to the latest version if available. If no patch exists, consider disabling the plugin or seeking assistance from your hosting provider or web developer to remove or replace it. Monitor for suspicious activity or unauthorized script injections.

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