Unrestricted file upload in bdthemes SigmaForms Pro – AI Generated Forms
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-434.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-14494
- 2026-10-03 Alias added: GHSA-vgff-mr3q-h6mh
References
More bdthemes vulnerabilities
- TI-2024-10178 Element Pack Elementor Addons < 5.10.3 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
- TI-2024-09719 Element Pack Elementor Addons < 5.10.3 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
- TI-2026-54684 SigmaForms Pro <= 1.4.11 - Unauthenticated Arbitrary File Deletion via Path Traversal in File Upload Field CVSS 3.1CRITICAL 9.8
- TI-2024-07444 Deserialization of untrusted data in bdthemes Ultimate Store Kit – Addon For WooCommerce… CVSS 3.1CRITICAL 9.8
- TI-2025-26330 WordPress Ultimate Store Kit Elementor Addons plugin <= 2.4.0 - Deserialization of untrusted data Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2024-35048 Unrestricted file upload in bdthemes Instant Image Generator CVSS 3.1CRITICAL 10.0
Sources
- CVE-2026-14494 · CVE Program
- CVE-2026-14494 · NVD
- FIRST EPSS
- GHSA-vgff-mr3q-h6mh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences