CVE-2026-14494 File upload in SigmaForms Pro – AI Generated Forms
Unauthenticated attackers can upload malicious files via default templates to execute arbitrary code on the server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-14494?
CVE-2026-14494 is a critical vulnerability in bdthemes SigmaForms Pro – AI Generated Forms, published on 29 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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 when allowed_file_types is not configured. This makes it possible for unauthenticated attackers to execute code on the server. Several default pre-built templates including Job Application, Support Ticket, and Wholesale Application have file upload fields with no file type restrictions configured by design, making this vulnerability immediately exploitable upon installation.
Weakness: CWE-434
Which versions are affected by CVE-2026-14494?
How do I fix CVE-2026-14494?
No fix has been published for CVE-2026-14494 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-14494 being exploited?
There is no known exploitation of CVE-2026-14494 in the wild and no public exploit code.
Sources
Also known as GHSA-vgff-mr3q-h6mh.