CVE-2026-4093
MediumCVSS 5.4Exploitation Probability (EPSS)
Low risk7th percentile - higher than 7% of all known CVEs
Summary
In the Drupal 7 Term Reference Tree module, two stored XSS vectors exist in the widget/formatter rendering pipeline. Vector A: when the Token module is enabled and token display templates are configured, attacker-controlled token output is rendered without proper sanitization. Vector B: taxonomy term labels are not properly sanitized before rendering, allowing script injection. Affects versions 7.x-1.x up to and including 7.x-1.11.
Risk Assessment
An attacker can execute arbitrary JavaScript in the victim's browser, potentially leading to session theft, defacement, or other malicious actions.
Recommendation
Update the Term Reference Tree module to a version later than 7.x-1.11 or apply appropriate security patches.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS