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CVE-2025-3662— FancyBox for WordPress < 3.3.6 - Unauthenticated Stored XSS

Quick assessment

Affected
Unknown FancyBox for WordPress
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。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress plugin是一个应用插件。 WordPress plugin FancyBox 3.3.6之前版本存在安全漏洞，该漏洞源于标题属性转义不足，可能导致存储型跨站脚本攻击。

AI Predicted 8.1 Difficulty: Easy EPSS 0.25% · P15
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I. Basic Information for CVE-2025-3662

Vulnerability Information
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Vulnerability Title
FancyBox for WordPress < 3.3.6 - Unauthenticated Stored XSS
Source: CVE Program / CVE List V5
Vulnerability Description
The FancyBox for WordPress plugin before 3.3.6 does not escape captions and titles attributes before using them to populate galleries' caption fields. The issue was received as a Contributor+ Stored XSS, however one of our researcher (Marc Montpas) escalated it to an Unauthenticated Stored XSS
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin FancyBox 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。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress plugin是一个应用插件。 WordPress plugin FancyBox 3.3.6之前版本存在安全漏洞，该漏洞源于标题属性转义不足，可能导致存储型跨站脚本攻击。
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
Unknown FancyBox for WordPress 0 ~ 3.3.6 -

II. Public POCs for CVE-2025-3662

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III. Intelligence Information for CVE-2025-3662

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Same Patch Batch · Unknown · 2025-06-03 · 3 CVEs total

CVE-2025-4567 Post Slider and Carousel with Widget < 3.2.10 - Admin+ Stored XSS
CVE-2025-3584 Newsletter < 8.8.2 - Admin+ Stored XSS via Subscription

IV. Related Vulnerabilities

Same product: FancyBox for WordPress
Same vendor: Unknown

V. Comments for CVE-2025-3662

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