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CVE-2026-93303— HT Contact Form <= 2.10.1 - Unauthenticated Stored DOM-Based Cross-Site Scripting via 'form_data' Rich Text Field via Draft Save/Resume

Quick assessment

Affected
htplugins HT Contact Form – Drag & Drop Form Builder 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 插件 HT Contact Form – Drag & Drop Form Builder 中存在存储型基于 DOM 的跨站脚本（XSS）漏洞。该漏洞出现在所有 2.10.1 及之前版本中，原因是插件在“form_data”富文本字段中对用户输入的清理（sanitization）和输出转义（output escaping）不足。当用户保存或恢复草稿时，未经验证和清理的数据被直接嵌入页面，导致在用户访问包含恶意脚本的页面时，脚本将被执行。 攻击者可以无需认证即可注入任意网页脚本，从而实现跨站脚本攻

CVSS 7.2 · High EPSS 0.25% · P14

Affected Version Matrix 1

VendorProduct Version RangeStatus
htplugins HT Contact Form – Drag & Drop Form Builder for WordPress ≤ 2.10.1 affected
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I. Basic Information for CVE-2026-93303

Vulnerability Information
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Vulnerability Title
HT Contact Form <= 2.10.1 - Unauthenticated Stored DOM-Based Cross-Site Scripting via 'form_data' Rich Text Field via Draft Save/Resume
Source: CVE Program / CVE List V5
Vulnerability Description
The HT Contact Form – Drag & Drop Form Builder for WordPress plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via 'form_data' Rich Text Field via Draft Save/Resume in all versions up to, and including, 2.10.1 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. Exploitation requires tricking a user into clicking an attacker-supplied draft resume URL, which the attacker constructs using the draft_key and access_token returned directly in the save response.
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
htplugins HT Contact Form – Drag & Drop Form Builder for WordPress 0 ~ 2.10.1 -

II. Public POCs for CVE-2026-93303

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III. Intelligence Information for CVE-2026-93303

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Patches & Fixes for CVE-2026-93303 (4)

Vendor Advisories for CVE-2026-93303 (1)

Other References for CVE-2026-93303 (1)

IV. Related Vulnerabilities

Same product: HT Contact Form – Drag & Drop Form Builder for WordPress
Same vendor: htplugins
Same weakness: CWE-79

V. Comments for CVE-2026-93303

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