Multi Step Form <= 1.7.25 - Authenticated (Admin+) Arbitrary File Upload

Unrestricted Upload of File with Dangerous Type
CVE CVE-2025-9515
CVSS High (7.2)
Publicly Published September 5, 2025
Last Updated September 6, 2025
Researcher tmrswrr
Description

The Multi Step Form plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation via the import functionality in all versions up to, and including, 1.7.25. This makes it possible for authenticated attackers, with Administrator-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

References

1 affected software package

Software Type Plugin
Software Slug multi-step-form (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 1.7.25
Patched Version
  • 1.7.26
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