What is CVE-2026-14854?

CVE-2026-14854 is a high-severity vulnerability in Woocommerce Bookings, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-10-11.

How severe is CVE-2026-14854?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Woocommerce Bookings

CVE-2026-14854

The WooCommerce Bookings WordPress plugin before 3.11.0 does not limit a user-supplied value before using it to allocate memory in one of its unauthenticated AJAX actions, allowing unauthenticated attackers to exhaust server memory and cause a Denial of Service with a single request.

Vulnerability class: DoS (Denial of Service)

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

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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

Woocommerce Bookings

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

wpscan.com/vulnerability/7b6aeaed-7600-4cf9-ba43-8a6fefb1a244/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-14854?: CVE-2026-14854 is a high-severity vulnerability in Woocommerce Bookings, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-10-11.
How severe is CVE-2026-14854?: High severity. CVSS v3 base score is 7.5 out of 10.