CVE-2025-47550

MEDIUM 6.6

WordPress Instantio plugin <= 3.3.16 - Arbitrary File Upload Vulnerability

CVSS Score

6.6

EPSS Score

0.0%

EPSS Percentile

0th

Unrestricted Upload of File with Dangerous Type vulnerability in Themefic Instantio instantio allows Upload a Web Shell to a Web Server.This issue affects Instantio: from n/a through <= 3.3.16.

CWE	CWE-434
Vendor	themefic
Product	instantio
Published	May 7, 2025
Last Updated	Apr 28, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Affected Versions

Themefic / Instantio

0 ≤ 3.3.16

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/Wordpress/Plugin/instantio/vulnerability/wordpress-instantio-3-3-16-arbitrary-file-upload-vulnerability?_s_id=cve

Credits

Ryan Kozak | Patchstack Bug Bounty Program