What is CVE-2025-47550?

CVE-2025-47550 is a medium-severity vulnerability in Themefic Instantio, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 6.6/10. Published 2025-05-07.

How severe is CVE-2025-47550?

Medium severity. CVSS v3 base score is 6.6 out of 10.

Is CVE-2025-47550 known to be exploited?

5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Arbitrary file upload in Themefic Instantio

CVE-2025-47550

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.

Vulnerability class: Unrestricted File Upload

Published 2025-05-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.004 (36.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Themefic Instantio — versions 0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

References

patchstack.com/database/Wordpress/Plugin/instantio/vulnerability/wordpress-inst… (Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2025-47550?: CVE-2025-47550 is a medium-severity vulnerability in Themefic Instantio, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 6.6/10. Published 2025-05-07.
How severe is CVE-2025-47550?: Medium severity. CVSS v3 base score is 6.6 out of 10.
Is CVE-2025-47550 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.