What is CVE-2026-123861?

CVE-2026-123861 is a medium-severity vulnerability in Crocoblock Jetformbuilder – Hierarchical Select, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2026-11-07.

How severe is CVE-2026-123861?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Crocoblock Jetformbuilder – Hierarchical Select

CVE-2026-123861

Authorization Bypass Through User-Controlled Key vulnerability in CrocoBlock JetFormBuilder – Hierarchical Select jet-form-builder-hierarchical-select allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects JetFormBuilder – Hierarchical Select: from n/a through 1.0.10.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2026-11-07 · last modified 2026-11-07.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Crocoblock Jetformbuilder – Hierarchical Select

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

patchstack.com/database/wordpress/plugin/jet-form-builder-hierarchical-select/v… (vdb-entry)

Frequently asked questions

What is CVE-2026-123861?: CVE-2026-123861 is a medium-severity vulnerability in Crocoblock Jetformbuilder – Hierarchical Select, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2026-11-07.
How severe is CVE-2026-123861?: Medium severity. CVSS v3 base score is 5.3 out of 10.