What is CVE-2026-121492?

CVE-2026-121492 is a medium-severity vulnerability in Fiber Admin, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-11-07.

How severe is CVE-2026-121492?

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

Auth bypass in Fiber Admin

CVE-2026-121492

The Fiber Admin WordPress plugin before 4.0.1 does not have authorisation checks in some of its AJAX actions, allowing unauthenticated users to change the order of arbitrary posts, including drafts, private posts and navigation menu items, as well as the order of taxonomy terms when term ordering is enabled.

Vulnerability class: Broken Access Control

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

Fiber Admin

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

wpscan.com/vulnerability/d6ee9d6f-ab77-4bf3-98f5-b7c5899aa8bb/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-121492?: CVE-2026-121492 is a medium-severity vulnerability in Fiber Admin, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-11-07.
How severe is CVE-2026-121492?: Medium severity. CVSS v3 base score is 5.3 out of 10.