What is CVE-2026-86706?

CVE-2026-86706 is a critical-severity vulnerability in Quick Quotes, classified under Missing Authorization. CVSS score: 9.1/10. Published 2026-10-11.

How severe is CVE-2026-86706?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Quick Quotes

CVE-2026-86706

The Quick quotes WordPress plugin through 1.0.0 does not perform any capability or nonce check on one of its AJAX actions and lets the caller choose which option is written, allowing unauthenticated users to alter arbitrary site settings and to make the site unavailable.

Vulnerability class: Broken Access Control

Published 2026-10-11 · last modified 2026-10-11.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

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

Quick Quotes

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

wpscan.com/vulnerability/d160d2a3-acc8-40f5-93ea-65f902f6df5d/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-86706?: CVE-2026-86706 is a critical-severity vulnerability in Quick Quotes, classified under Missing Authorization. CVSS score: 9.1/10. Published 2026-10-11.
How severe is CVE-2026-86706?: Critical severity. CVSS v3 base score is 9.1 out of 10.