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CVE-2026-119054— Multiple Pages Generator by Themeisle before 4.2.5 Stored XSS via Shortcode base-url

Quick assessment

Affected
Themeisle Multiple Pages Generator by Themeisle
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.

在 4.2.5 版本之前的 Themeisle 开发的 Multiple Pages Generator 插件存在存储型跨站脚本（Stored XSS）漏洞。该漏洞允许拥有“贡献者”（Contributor）权限的用户，通过 和 短代码的 属性注入恶意脚本。攻击者可以提交经过实体编码的载荷，这些载荷能够绕过 WordPress 的 过滤机制，随后被 函数解码，并通过 模板标签以未转义的形式渲染，最终在管理员浏览器的上下文中执行恶意脚本。

CVSS 5.4 · Medium

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript
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I. Basic Information for CVE-2026-119054

Vulnerability Information
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Vulnerability Title
Multiple Pages Generator by Themeisle before 4.2.5 Stored XSS via Shortcode base-url
Source: CVE Program / CVE List V5
Vulnerability Description
Multiple Pages Generator by Themeisle before 4.2.5 contains a stored cross-site scripting vulnerability that allows Contributor-level users to inject script via the [mpg] and [mpg_match] shortcode base-url attribute. Attackers can store entity-encoded payloads that pass kses but are decoded by html_entity_decode() and rendered unescaped through {{mpg_url}}, executing script in administrators' browsers.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/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
Themeisle Multiple Pages Generator by Themeisle 0 ~ 4.2.5 -

II. Public POCs for CVE-2026-119054

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III. Intelligence Information for CVE-2026-119054

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Other References for CVE-2026-119054 (6)

IV. Related Vulnerabilities

Same vendor: Themeisle
Same weakness: CWE-79