blogsafe.org My Downloads

BlogSafe.org

WordPress CVEs

Search and review WordPress-related vulnerability records.

← Back to CVE list

CVE-2026-109384

HIGH 8.8 CVSS 3.1
Published
October 28, 2026
Last modified
October 29, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-434
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • melograno The Innovative Form Builder – IvyForms — Up to and including 1.5.1

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ivyforms/tags/1.5.1/backend/src/Common/Sanitizer/Sanitizer.php#L839
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ivyforms/tags/1.5.1/backend/src/Routes/Form/Form.php#L246
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ivyforms/tags/1.5.1/backend/src/Services/Submission/SubmissionUploadFilePersister.php#L126
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ivyforms/tags/1.5.1/backend/src/Services/Submission/SubmissionUploadFileValidator.php#L127
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ivyforms/tags/1.5.1/backend/src/Services/Submission/SubmissionUploadFiletypeFilter.php#L68
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&old=3757861%40ivyforms&new=3757861%40ivyforms
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/52ca2269-a7f4-477c-bacd-0321ad09e679?source=cve
  • nvd.nist.gov Official NVD record