Sigma Forms Pro <= 1.4.5 - Unauthenticated Unauthenticated Arbitrary File Upload Leading to Remote Code Execution via Pre-built Template File Upload Field
critical
The Sigma Forms Pro plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.4.5 via the handle_form_submission function. This is due to the plugin dynamically granting the unfiltered_upload capability to all users during form submissions and bypassing MIME type validation whe...
- CVSS:
- 9.8
- Affected:
- up to 1.4.5
- Fixed in:
- 1.4.6
- Disclosed:
- Aug 28, 2026
CVE-2026-14494 on NVD →
Sigma Forms Pro <= 1.4.5 - Unauthenticated Arbitrary File Upload
critical
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.
- CVSS:
- 9.8
- Affected:
- up to 1.4.5
- Fixed in:
- 1.4.6
- Disclosed:
- Jun 15, 2026
CVE-2026-52705 on NVD →
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