CRITICAL

CVE-2026-87796

CVSS v3

9.8

CRITICAL

EPSS Score

1.1 %

exploit probability, as of 2026-09-25

CISA KEV

known exploited

Exploitation

—

SSVC status

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.

Technical details

Published: 2026-09-17
Last Modified: 2026-09-17

Frequently asked questions

What is CVE-2026-87796?

Is CVE-2026-87796 actively exploited?

Active exploitation of CVE-2026-87796 has not been confirmed. Its EPSS score was 1.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-87796?

CVE-2026-87796 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2026-87796 affecting your environment?

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