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CVE-2026-18021— Beaver Builder Page Builder <= 2.10.3.1 - Unauthenticated Arbitrary Shortcode Execution

Quick assessment

Affected
beaverbuilder Beaver Builder Page Builder – Drag and Drop Website Builder
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress Beaver Builder Page Builder是WordPress基金会开源的一款页面构建插件。 WordPress Beaver Builder Page Builder 2.10.3.1及之前版本存在代码注入漏洞，该漏洞源于软件在运行do_shortcode前未正确验证值，可能导致未经身份验证的攻击者执行任意短代码。

CVSS 6.5 · Medium EPSS 0.27% · P18

Affected Version Matrix 1

VendorProduct Version RangeStatus
beaverbuilder Beaver Builder Page Builder – Drag and Drop Website Builder ≤ 2.10.3.1 affected
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I. Basic Information for CVE-2026-18021

Vulnerability Information
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Vulnerability Title
Beaver Builder Page Builder <= 2.10.3.1 - Unauthenticated Arbitrary Shortcode Execution
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Beaver Builder Page Builder 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Beaver Builder Page Builder是WordPress基金会开源的一款页面构建插件。 WordPress Beaver Builder Page Builder 2.10.3.1及之前版本存在代码注入漏洞，该漏洞源于软件在运行do_shortcode前未正确验证值，可能导致未经身份验证的攻击者执行任意短代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
beaverbuilder Beaver Builder Page Builder – Drag and Drop Website Builder 0 ~ 2.10.3.1 -

II. Public POCs for CVE-2026-18021

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III. Intelligence Information for CVE-2026-18021

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Vendor Advisories for CVE-2026-18021 (1)

IV. Related Vulnerabilities

Same product: Beaver Builder Page Builder – Drag and Drop Website Builder
Same vendor: beaverbuilder
Same weakness: CWE-94