CVE-2026-39571

Name: CVE-2026-39571
Creator: NVD / NIST
Published: 2026-04-08T09:16:28.36+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2026-39571 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in Themefic Instantio instantio allows Retrieve Embedded Sensitive Data.This issue affects Instantio: from n/a through <= 3.3.30.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in Themefic Instantio instantio allows Retrieve Embedded Sensitive Data.This issue affects Instantio: from n/a through <= 3.3.30.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.24%

15.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-497

References

https://patchstack.com/database/Wordpress/Plugin/instantio/vulnerability/wordpress-instantio-plugin-3-3-30-sensitive-data-exposure-vulnerability?_s_id=cve

Timeline

Published: Apr 8, 2026
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2026-39571?

How severe is CVE-2026-39571?

CVE-2026-39571 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2026-39571?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-39571?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST