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CVE-2026-6048— Flipbox Addon for Elementor <= 2.1.1 - Authenticated (Author+) Stored Cross-Site Scripting via Custom Attributes

CVSS 6.4 · Medium EPSS 0.01% · P2
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I. Basic Information for CVE-2026-6048

Vulnerability Information
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Vulnerability Title
Flipbox Addon for Elementor <= 2.1.1 - Authenticated (Author+) Stored Cross-Site Scripting via Custom Attributes
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Flipbox Addon for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Flipbox widget's button URL `custom_attributes` field in all versions up to, and including, 2.1.1 due to insufficient validation of custom attribute names. Specifically, the plugin uses `esc_html()` on the attribute name which does not prevent event handler attributes (e.g., `onmouseover`, `onclick`). This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
WordPress plugin Flipbox Addon for Elementor 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Flipbox Addon for Elementor 2.1.1及之前版本存在安全漏洞，该漏洞源于Flipbox部件按钮URL custom_attributes字段的自定义属性名称验证不足，可能导致具有作者级别及
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

VendorProductAffected VersionsCPESubscribe
dragwybFlipbox Addon for Elementor 0 ~ 2.0.8 -

II. Public POCs for CVE-2026-6048

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III. Intelligence Information for CVE-2026-6048

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IV. Related Vulnerabilities

Same vendor: dragwyb
Same weakness: CWE-79

V. Comments for CVE-2026-6048

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