Sigma Forms Pro <= 1.4.5 - Unauthenticated Arbitrary File Upload

9.8
Unrestricted Upload of File with Dangerous Type
CVE CVE-2026-52705
CVSS 9.8 (Critical)
Publicly Published June 15, 2026
Last Updated June 25, 2026
Researcher Nguyen Ba Khanh

Description

The Sigma Forms Pro plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in all versions up to, and including, 1.4.5. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

Learn more about Arbitrary File Upload vulnerabilities and how to prevent them.

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Vulnerability Details for SigmaForms Pro – AI Generated Forms

Software Type Plugin
Software Slug sigmaforms-pro
Patched? Yes
Remediation Update to version 1.4.6, or a newer patched version
Affected Version
  • <= 1.4.5
Patched Version
  • 1.4.6

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