CVE-2026-39571CWE-497

WordPress Instantio plugin <= 3.3.30 - Sensitive Data Exposure vulnerability

Medium · published April 8, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
24.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00330 · 24.9th percentile
Weakness
CWE-497 · Exposure of Sensitive System Information to an Unauthorized Control Sphere
Published
2026-04-08T08:30Z
EPSS history
Timeline
  • 08 APR 08:30Z
    WordPress Instantio plugin <= 3.3.30 - Sensitive Data Exposure vulnerability
    cvelistv5