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CVE-2026-2422— WP Composer <= 1.0.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'pbwp_raw_shortcode' Shortcode

Quick assessment

Affected
ghozylab WP Composer – The Easiest Page 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 WP Composer – The Easiest Page Builder 插件（所有版本，包括 1.0.5 及更早版本）存在存储型跨站脚本（Stored XSS）漏洞。漏洞源于 'pbwp_raw_shortcode' 短代码处理程序在解码 Base64 编码的内容后，未进行任何净化或转义就直接输出。这使得拥有 Contributor（贡献者）及以上权限的已认证攻击者能够将任意 Web 脚本注入到页面中，当用户访问被注入的页面时，这些脚本将会执行。由于 Base64 编码后的字符串不包含

CVSS 6.4 · Medium EPSS 0.21% · P10

Affected Version Matrix 1

VendorProduct Version RangeStatus
ghozylab WP Composer – The Easiest Page Builder ≤ 1.0.5 affected
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I. Basic Information for CVE-2026-2422

Vulnerability Information
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Vulnerability Title
WP Composer <= 1.0.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'pbwp_raw_shortcode' Shortcode
Source: CVE Program / CVE List V5
Vulnerability Description
The WP Composer – The Easiest Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'pbwp_raw_shortcode' shortcode in all versions up to, and including, 1.0.5. This is due to the shortcode handler decoding Base64-encoded content and outputting it directly without any sanitization or escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The Base64 encoding allows the payload to bypass WordPress's KSES content filtering at save time, since the encoded string contains no harmful HTML characters.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
ghozylab WP Composer – The Easiest Page Builder 0 ~ 1.0.5 -

II. Public POCs for CVE-2026-2422

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III. Intelligence Information for CVE-2026-2422

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Patches & Fixes for CVE-2026-2422 (1)

Security Blog Posts for CVE-2026-2422 (1)

IV. Related Vulnerabilities

Same vendor: ghozylab
Same weakness: CWE-79

V. Comments for CVE-2026-2422

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