Unauthenticated Email Content Injection in CatalogX WordPress Plugin

Executive Summary

The CatalogX WordPress plugin before version 6.1.3 has a flaw where it does not properly sanitize or escape user input stored in a shared transient. An unauthenticated attacker can inject arbitrary content into the product enquiry notification email sent to the site administrator. This malicious content is then delivered when an unrelated visitor submits a product enquiry.

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Detection Guidance

Check if the CatalogX WordPress plugin version is below 6.1.3. Look for unauthorized content in product enquiry notification emails sent to administrators. Review server logs for suspicious transient data storage or email generation triggered by unrelated visitor submissions.

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Impact Analysis

This vulnerability allows attackers to send unauthorized or malicious content to the site administrator via email. It could lead to phishing attempts, spreading malware, or disrupting normal site operations. The impact depends on how the administrator interacts with the injected content.

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Compliance Impact

This vulnerability could potentially affect compliance with GDPR and HIPAA by allowing unauthorized data injection into emails sent to site administrators. If sensitive personal or health data is included in these emails, improper handling or exposure could violate GDPR's data protection requirements or HIPAA's privacy rules.

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Mitigation Strategies

Update the CatalogX plugin to version 6.1.3 or later immediately. If updating is not possible, consider disabling the plugin temporarily until a patch is applied. Monitor administrator email content for unexpected or malicious payloads.

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