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 的 Beaver Builder 页面构建器（拖拽式网站构建器）插件在所有版本（包括且包括 2.10.3.1）中均存在任意短代码（shortcode）执行漏洞。该漏洞的原因在于：软件允许用户执行一个操作，但在运行 之前未对传入的值进行充分验证。这使得未经身份验证的攻击者能够执行任意的短代码。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| 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
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
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Vendor Advisories for CVE-2026-18021 (1)
IV. Related Vulnerabilities
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V. Comments for CVE-2026-18021
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