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CVE-2026-4093— Stored XSS in Drupal 7 Term Reference Tree module (token display templates and term labels)

Quick assessment

Affected
Drupal Term Reference Tree
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.

Drupal是Drupal社区的一套使用PHP语言开发的开源内容管理系统。 Drupal 7.x-1.11及之前的7.x-1.x版本存在跨站脚本漏洞，该漏洞源于Term Reference Tree中小部件/格式化程序渲染管道中存在两个存储型跨站脚本向量，可能导致攻击者注入HTML/JS。

AI Predicted 6.1 Difficulty: Easy EPSS 0.17% · P7

Affected Version Matrix 1

VendorProduct Version RangeStatus
Drupal Term Reference Tree 7.x-1.x≤ 7.x-1.11 affected
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I. Basic Information for CVE-2026-4093

Vulnerability Information
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Vulnerability Title
Stored XSS in Drupal 7 Term Reference Tree module (token display templates and term labels)
Source: CVE Program / CVE List V5
Vulnerability Description
In the Drupal 7 Term Reference Tree module, two stored XSS vectors exist in the widget/formatter rendering pipeline. Vector A (token display templates): When the Token module is enabled and token display templates are configured, attacker-controlled token output (e.g., term description) is rendered without proper sanitization. Any user who can edit the referenced taxonomy terms can inject HTML/JS that executes when the field is rendered. Vector B (term label rendering): Taxonomy term labels are not properly sanitized before being rendered in the widget, allowing a user with permission to create or edit taxonomy terms to inject scripts into the term name that execute when a form containing the widget is viewed. Exploit affects versions 7.x-1.x up to and including 7.x-1.11.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA: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
Vulnerability Title
Drupal 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Drupal是Drupal社区的一套使用PHP语言开发的开源内容管理系统。 Drupal 7.x-1.11及之前的7.x-1.x版本存在跨站脚本漏洞，该漏洞源于Term Reference Tree中小部件/格式化程序渲染管道中存在两个存储型跨站脚本向量，可能导致攻击者注入HTML/JS。
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
Drupal Term Reference Tree 7.x-1.x ~ 7.x-1.11 -

II. Public POCs for CVE-2026-4093

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III. Intelligence Information for CVE-2026-4093

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Vendor Advisories for CVE-2026-4093 (1)

Other References for CVE-2026-4093 (1)

IV. Related Vulnerabilities

Same vendor: Drupal
Same weakness: CWE-79

V. Comments for CVE-2026-4093

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