What is CVE-2026-86782?

CVE-2026-86782 is a medium-severity vulnerability in Visualizer, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.5/10. Published 2026-09-11.

How severe is CVE-2026-86782?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Auth bypass in Visualizer

CVE-2026-86782

The Visualizer WordPress plugin before 4.0.6 does not properly authorise access to its chart-building actions, allowing users with the Contributor role and above to publish, rename, and overwrite the content of posts and pages they do not own, including other users' private drafts.

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N.

Affected products

Unknown Visualizer

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-86782?: CVE-2026-86782 is a medium-severity vulnerability in Visualizer, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.5/10. Published 2026-09-11.
How severe is CVE-2026-86782?: Medium severity. CVSS v3 base score is 5.5 out of 10.