Quick answers
- Is CVE-2026-14854 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-14854 being exploited in the wild.
- How severe is CVE-2026-14854?
- High severity, with a CVSS score of 7.5, published 11 October 2026.
- Which products and versions are affected?
- WooCommerce Bookings before 3.11.0.
- Is there a fix for CVE-2026-14854?
- Yes: fixed in 3.11.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-14854 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-14854?
- Check whether you run WooCommerce Bookings at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 3.11.0
Technical details
The plugin fails to validate or limit a user-supplied parameter before using it to allocate memory in an unauthenticated AJAX handler, enabling unbounded memory allocation. An attacker can trigger this remotely without authentication through a crafted request. The vulnerability allows a single request to exhaust available memory and crash the web application.
Affected products
- WooCommerce Bookings before 3.11.0
Timeline
- 2026-10-09: disclosed
- 2026-10-11: advisory