CVE-2026-18021

Deferred Deferred - Pending Action

Arbitrary Shortcode Execution in Beaver Builder WordPress Plugin

Publication date: 2026-09-08

Last updated on: 2026-09-08

Assigner: Wordfence

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.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-08

Last Modified

2026-09-08

Generated

2026-09-09

AI Q&A

2026-09-09

EPSS Evaluated

N/A

NVD

CVE-2026-18021

Affected Vendors & Products

Vendor	Product	Version / Range
beaver_builder	page_builder	to 2.10.3.1 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-94	The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Attack-Flow Graph

Executive Summary

This vulnerability allows unauthenticated attackers to execute arbitrary shortcodes in WordPress through the Beaver Builder Page Builder plugin. The issue exists because the plugin does not properly validate user input before running the do_shortcode function, enabling malicious code execution.

Impact Analysis

An attacker could exploit this to run unauthorized code on your WordPress site, potentially leading to data theft, defacement, or further compromise of your website or server. It may also allow attackers to perform actions as if they were a legitimate user.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, violating GDPR and HIPAA requirements for data protection and access control. Non-compliance may result in legal penalties, fines, or reputational damage.

Mitigation Strategies

Update the Beaver Builder Page Builder plugin to the latest version beyond 2.10.3.1 to address the arbitrary shortcode execution vulnerability.

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