CVE-2026-39571 Details
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.
A vulnerability allowing the exposure of sensitive system information in the Themefic Instantio WordPress plugin, affecting versions through 3.3.30. This issue allows unauthorized users to retrieve embedded sensitive data, which could be exploited to access other weaknesses in the system.
Users of the WordPress Instantio plugin should update to version 3.3.31 or later. Patchstack users can enable auto-update for vulnerable plugins.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Apr 8, 2026CISA-ADP
Assessed Apr 13, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-497 | Exposure of Sensitive System Information to an Unauthorized Control Sphere | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Themefic Instantio | <= 3.3.30 (semver) |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 13, 2026 | CVE Modified | CISA-ADP |
| Apr 8, 2026 | New CVE Received | [email protected] |
Volerion