CVE-2026-87796

Received
Published: 17 Sept 2026, 04:28
Last modified:17 Sept 2026, 04:28

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (cve.org)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

17 Sept 2026, 04:28
Published
Vulnerability first disclosed

Description

The Multi Uploader for Gravity Forms plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.1.9 via the move_file function. This is due to insufficient file type validation during chunked upload handling. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Techniques & Countermeasures

  • CWE-434•Unrestricted Upload of File with Dangerous Type

    The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

Affected Systems

  • sh1zen•multi uploader for gravity forms

    ≤ 1.1.9

References (6)