WordPress security changelog
MEDIUM CVE-2026-18021 Deferred

Beaver Builder permits unauthenticated shortcode execution

Beaver Builder through 2.10.3.1 allows unauthenticated callers to reach an action that passes an inadequately validated value to do_shortcode. An attacker can execute shortcodes registered on the site; the information exposed or changes made depend on the installed shortcode handlers.

CVE / CNA score 6.5 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Beaver Builder Page Builder – Drag and Drop Website Builder
Plugin slug
beaver-builder-lite-version
Affected
<= 2.10.3.1
Safe version
See mitigation notes
Published
Sep 08, 2026
Weakness
CWE-94 — Improper Control of Generation of Code ('Code Injection')

This CVE was published Sep 08, 2026 and is one of 21 known issues for this plugin.

Update, patch or deactivate.

Beaver Builder 2.10.3.2 is available and may resolve the issue, but the checked official changelog does not confirm the fix. Update, obtain vendor confirmation, and review which registered shortcodes expose sensitive information or actions to unauthenticated callers.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Primary and upstream sources