Executive Summary

The vulnerability exists in the WordPress plugin SigmaForms Pro – AI Generated Forms, versions 1.4.5 and below. It is an Arbitrary File Upload issue that allows unauthenticated attackers to upload any file type to the website.

This means attackers can upload malicious files, such as backdoors, without needing to log in or have any privileges.

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Impact Analysis

This vulnerability can lead to severe impacts including full website compromise.

• Attackers can upload malicious backdoors to gain persistent access.
• It can result in data theft, defacement, or further exploitation of the server.
• Because it is unauthenticated and has a high severity score (CVSS 9.0), it is often targeted in mass-exploit campaigns.

Users are strongly advised to update to version 1.4.6 or apply mitigation rules to block attacks.

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Mitigation Strategies

The vulnerability in SigmaForms Pro – AI Generated Forms versions 1.4.5 and below allows unauthenticated arbitrary file uploads, which is highly dangerous.

Immediate mitigation steps include updating the plugin to version 1.4.6 where the issue is patched.

If updating immediately is not possible, users are advised to apply the mitigation rule provided by Patchstack to block attacks until the update can be completed.

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Compliance Impact

The vulnerability allows unauthenticated attackers to upload arbitrary files, including malicious backdoors, which can lead to unauthorized access and potential data breaches.

Such unauthorized access and potential data compromise can negatively impact compliance with data protection regulations like GDPR and HIPAA, which require safeguarding personal and sensitive information against unauthorized access and breaches.

Therefore, if exploited, this vulnerability could result in violations of these standards due to failure to protect data confidentiality, integrity, and availability.

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