What is CVE-2026-18021?

CVE-2026-18021 is a medium-severity vulnerability in Beaverbuilder Beaver Builder Page – Drag And Drop Website, classified under Code Injection. CVSS score: 6.5/10. Published 2026-09-08.

How severe is CVE-2026-18021?

Medium severity. CVSS v3 base score is 6.5 out of 10.

RCE in Beaverbuilder Beaver Builder Page – Drag And Drop Website

CVE-2026-18021

The The Beaver Builder Page Builder – Drag and Drop Website Builder plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 2.10.3.1. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.

Vulnerability class: RCE (Remote Code Execution)

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Beaverbuilder Beaver Builder Page – Drag And Drop Website

Weakness classification (CWE)

CWE-94 — Code Injection

References

Frequently asked questions

What is CVE-2026-18021?: CVE-2026-18021 is a medium-severity vulnerability in Beaverbuilder Beaver Builder Page – Drag And Drop Website, classified under Code Injection. CVSS score: 6.5/10. Published 2026-09-08.
How severe is CVE-2026-18021?: Medium severity. CVSS v3 base score is 6.5 out of 10.