All vulnerabilities
CVE-2026-14854

WooCommerce Bookings < 3.11.0 - Unauthenticated Denial of Service

Unknown WooCommerce Bookings
Open in ThreatlineRecord JSON
CVSS
7.5High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.34%Chance of exploitation activity in the next 30 days, higher than 26% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in3.11.0Fixed versionCVE List
Published11 Oct 2026Updated 11 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

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.

Text from CVE List

Affected versions 1

  • WooCommerce Bookingsaffected: all versions before 3.11.0CVE List

References 1