Auth bypass in Themefic Instantio

CVE-2025-24581

Missing Authorization vulnerability in Themefic Instantio instantio allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Instantio: from n/a through <= 3.3.7.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.

EPSS exploit prediction

EPSS: 0.004 (29.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-24581: held from 0.004 to 0.004.

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

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-24581?
CVE-2025-24581 is a medium-severity vulnerability in Themefic Instantio, classified under Missing Authorization. CVSS score: 6.5/10. Published 2025-04-17.
How severe is CVE-2025-24581?
Medium severity. CVSS v3 base score is 6.5 out of 10.