What is CVE-2026-27397?

CVE-2026-27397 is a medium-severity vulnerability in Really Simple Plugins B.v. Security Pro, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-03-19.

How severe is CVE-2026-27397?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Really Simple Plugins B.v. Security Pro

CVE-2026-27397

Authorization Bypass Through User-Controlled Key vulnerability in Really Simple Plugins B.V. Really Simple Security Pro allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Really Simple Security Pro…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.001 (17.9th percentile) — read the EPSS interpretation.

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.

Affected products

Really Simple Plugins B.v. Security Pro — versions n/a

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-27397?: CVE-2026-27397 is a medium-severity vulnerability in Really Simple Plugins B.v. Security Pro, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-03-19.
How severe is CVE-2026-27397?: Medium severity. CVSS v3 base score is 6.5 out of 10.