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TI-2026-81737 Aliases CVE-2026-109384GHSA-qrwx-hpgq-g68q

Arbitrary file upload in The Innovative Form Builder IvyForms plugin

Priority MEDIUM 41CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
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 Innovative Form Builder IvyForms plugin for WordPress is affected up to and including 1.5.1. A missing denylist for dangerous extensions and a filter that overrides WordPress's file type checks allow unrestricted uploads of dangerous file types (CWE-434). An authenticated attacker with the add_edit_forms capability can configure a File Upload field to accept php files, and then any unauthenticated visitor can upload such a file through the public submission REST route, which can make remote code execution possible.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

The The Innovative Form Builder – IvyForms plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.5.1 via the filterFiletypeAndExt function. This is due to insufficient file type validation due to the absence of a dangerous-extension denylist in the allowed-extensions sanitizer and deliberate override of WordPress's native MIME and extension defences via a registered wp_check_filetype_and_ext filter. This makes it possible for authenticated attackers, with custom-level access and above, to upload files that may be executable, which makes remote code execution possible. An authenticated attacker with the custom add_edit_forms capability must first configure a File Upload field with a dangerous extension (e.g., php) in the allowed-extensions list; once that form is published, any unauthenticated visitor can trigger the actual file upload via the publicly accessible /wp-json/ivyforms/v1/form/submission/ REST route.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00725 54th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
melogranoThe Innovative Form Builder – IvyFormsup to 1.5.1—No fix listedCNA
  • The Innovative Form Builder – IvyForms Vendormelograno Affected up to 1.5.1 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for The Innovative Form Builder IvyForms.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-28 Threatist record created from CVE-2026-109384
  2. 2026-10-28 Alias added: GHSA-qrwx-hpgq-g68q
  3. 2026-10-28 Priority changed: MEDIUM → LOW
  4. 2026-10-29 CISA SSVC decision points changed
  5. 2026-10-29 Priority changed: LOW → MEDIUM

References

Other 7

  • TI-2026-07957 Improper privilege management in melograno Booking for Appointments and Events Calendar… CVSS 3.1CRITICAL 9.8
  • TI-2026-05512 Cross-site scripting in melograno Booking for Appointments and Events Calendar – Amelia CVSS 3.1HIGH 7.2
  • TI-2026-86488 Missing authorization in Amelia plugin exposes event attendee data CVSS 3.1HIGH 7.5
  • TI-2026-83520 Sensitive data exposure in Amelia booking plugin for WordPress CVSS 3.1MEDIUM 5.3
  • TI-2026-13834 Booking for Appointments and Events Calendar - Amelia <= 2.4.5 - Missing Authorization to Unauthenticated Payment Bypass CVSS 3.1MEDIUM 5.3
  • TI-2026-86487 Missing authorization in Amelia plugin exposes booking records CVSS 3.1MEDIUM 6.5
See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences