CVE-2026-4093
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- Range: <=7.x-1.11
- cpe:2.3:a:taxonomy_term_reference_tree_widget_project:taxonomy_term_reference_tree_widget:*:*:*:*:*:drupal:*:*Range: >=7.x-1.0,<7.x-1.12
- Range: 7.x-1.x <= 7.x-1.11
Patches
Vulnerability mechanics
References
2- www.herodevs.com/vulnerability-directory/cve-2026-4093nvdExploitThird Party Advisory
- d7es.tag1.com/security-advisories/taxonomy-term-reference-tree-widget-moderately-critical-cross-site-scriptingnvdThird Party Advisory
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