What is CVE-2026-121759?

CVE-2026-121759 is a medium-severity vulnerability in Fusion Page Builder, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.9/10. Published 2026-11-09.

How severe is CVE-2026-121759?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Auth bypass in Fusion Page Builder

CVE-2026-121759

The Fusion Page Builder WordPress plugin before 1.7.1 does not check that the user owns the content it moves to the trash, which could allow users with a role as low as Contributor to trash arbitrary posts and pages, or delete them permanently where the trash is disabled.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2026-11-09 · last modified 2026-11-09.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/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

Fusion Page Builder

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

wpscan.com/vulnerability/df86f132-208c-4ba4-bf90-cc59b123f610/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-121759?: CVE-2026-121759 is a medium-severity vulnerability in Fusion Page Builder, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.9/10. Published 2026-11-09.
How severe is CVE-2026-121759?: Medium severity. CVSS v3 base score is 4.9 out of 10.