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CVE-2026-9635— WP Shortcode by MyThemeShop <= 1.4.17 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'title' Shortcode Attribute

Quick assessment

Affected
mythemeshop WP Shortcode by MyThemeShop
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 WP Shortcode by MyThemeShop是WordPress基金会的一款为WordPress网站添加短代码功能的插件。 WordPress WP Shortcode by MyThemeShop 1.4.17及之前版本存在跨站脚本漏洞，该漏洞源于mts_tabs()函数对'title'参数输入清理和输出转义不足，可能导致经过身份验证的攻击者注入任意Web脚本。

CVSS 6.4 · Medium EPSS 0.19% · P9

Affected Version Matrix 1

VendorProduct Version RangeStatus
mythemeshop WP Shortcode by MyThemeShop ≤ 1.4.17 affected
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I. Basic Information for CVE-2026-9635

Vulnerability Information
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Vulnerability Title
WP Shortcode by MyThemeShop <= 1.4.17 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'title' Shortcode Attribute
Source: CVE Program / CVE List V5
Vulnerability Description
The WP Shortcode by MyThemeShop plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'title' parameter of the [tab] shortcode in versions up to, and including, 1.4.17. This is due to insufficient input sanitization and output escaping in the mts_tabs() function, which outputs the title shortcode attribute directly into the HTML output between anchor tags without applying any escaping functions. 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.
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
Vulnerability Title
WordPress WP Shortcode by MyThemeShop 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress WP Shortcode by MyThemeShop是WordPress基金会的一款为WordPress网站添加短代码功能的插件。 WordPress WP Shortcode by MyThemeShop 1.4.17及之前版本存在跨站脚本漏洞，该漏洞源于mts_tabs()函数对'title'参数输入清理和输出转义不足，可能导致经过身份验证的攻击者注入任意Web脚本。
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
mythemeshop WP Shortcode by MyThemeShop 0 ~ 1.4.17 -

II. Public POCs for CVE-2026-9635

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III. Intelligence Information for CVE-2026-9635

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News Coverage for CVE-2026-9635 (1)

IV. Related Vulnerabilities

Same product: WP Shortcode by MyThemeShop
Same vendor: mythemeshop
Same weakness: CWE-79

V. Comments for CVE-2026-9635

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