CVE-2026-39571

WordPress Instantio plugin <= 3.3.30 - Sensitive Data Exposure vulnerability

State: Published
Severity: 5.3 Medium
Published: Apr 8, 2026
Updated: Apr 29, 2026
Reserved: Apr 7, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	Patchstack
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	CISA-ADP

Weaknesses

CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere

Affected Products

Product	Versions
InstantioThemefic	3.3.30 and earlierAffectedfrom 3.3.31Not affected

References

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

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