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CVE-2026-84280— Fancy Product Designer <= 6.5.2 - Unauthenticated Stored Cross-Site Scripting via Shortcode Order 'elements[].title' Parameter

Quick assessment

Affected
radykal Fancy Product Designer
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 Fancy Product Designer 插件存在存储型跨站脚本漏洞，影响所有 6.5.2 及更早版本。该漏洞是由于对输入 sanitization 不足以及输出转义不够完善所导致。攻击者可以通过 Shortcode Order 中的 参数注入任意 Web 脚本，这些脚本会在任何用户访问被注入的页面时执行。具体来说，当处理存储订单 JSON 中的 字段时，注入的恶意代码会通过 innerHTML 写入 DOM（在 beforeElementAdd JavaScript 事件处理器中），因

CVSS 7.2 · High EPSS 0.27% · P18

Affected Version Matrix 1

VendorProduct Version RangeStatus
radykal Fancy Product Designer ≤ 6.5.2 affected
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I. Basic Information for CVE-2026-84280

Vulnerability Information
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Vulnerability Title
Fancy Product Designer <= 6.5.2 - Unauthenticated Stored Cross-Site Scripting via Shortcode Order 'elements[].title' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The Fancy Product Designer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Shortcode Order 'elements[].title' Parameter in all versions up to, and including, 6.5.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The injected payload is written to the DOM via innerHTML within the beforeElementAdd JavaScript event handler when processing the elements[].title field from the stored order JSON, meaning execution occurs specifically when an administrator reviews shortcode orders in the WordPress admin panel.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/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
radykal Fancy Product Designer 0 ~ 6.5.2 -

II. Public POCs for CVE-2026-84280

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III. Intelligence Information for CVE-2026-84280

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News Coverage for CVE-2026-84280 (1)

Vendor Pages for CVE-2026-84280 (1)

Same Patch Batch · radykal · 2026-09-25 · 3 CVEs total

CVE-2026-84279 7.2 HIGH Fancy Product Designer <= 6.5.2 - Unauthenticated Stored Cross-Site Scripting via 'output_
CVE-2026-84281 7.2 HIGH Fancy Product Designer <= 6.5.2 - Unauthenticated Stored Cross-Site Scripting via 'product

IV. Related Vulnerabilities

Same product: Fancy Product Designer
Same vendor: radykal
Same weakness: CWE-79

V. Comments for CVE-2026-84280

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