Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-84281— Fancy Product Designer <= 6.5.2 - Unauthenticated Stored Cross-Site Scripting via 'productTitle' in '_fpd_data' Order Item Meta

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（所有 6.5.2 及更早版本）在 '_fpd_data' 订单项元数据中的 'productTitle' 字段存在存储型跨站脚本（Stored Cross-Site Scripting, XSS）漏洞。该漏洞是由于输入清理和输出转义不足所导致，攻击者无需认证即可在页面中注入任意网页脚本。当用户访问包含恶意脚本的页面时，这些脚本便会自动执行。 攻击者可通过向未注册用户开放的 AJAX 操作 （通过 注册）发送恶意数据，该操作未进行 nonce

CVSS 7.2 · High EPSS 0.21% · P10

Affected Version Matrix 1

VendorProduct Version RangeStatus
radykal Fancy Product Designer ≤ 6.5.2 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-84281

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Fancy Product Designer <= 6.5.2 - Unauthenticated Stored Cross-Site Scripting via 'productTitle' in '_fpd_data' Order Item Meta
Source: CVE Program / CVE List V5
Vulnerability Description
The Fancy Product Designer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'productTitle' in '_fpd_data' Order Item Meta 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 fpd_save_order AJAX action is registered for unauthenticated users via wp_ajax_nopriv_fpd_save_order with no nonce or capability check, and the strip_tags() sanitization applied at save time is bypassed by submitting JSON unicode escape sequences (e.g. \u003c, \u003e), which json_decode() silently converts back to literal angle brackets when the order is rendered in the admin view.
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-2026-84281

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-84281

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-84281 (1)

Vendor Pages for CVE-2026-84281 (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-2026-84280 7.2 HIGH Fancy Product Designer <= 6.5.2 - Unauthenticated Stored Cross-Site Scripting via Shortcod

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-84281

No comments yet

Leave a comment