CVE-2026-4093
5.4 · MEDIUMOverview
CVE-2026-4093 is a medium-severity vulnerability affecting taxonomy_term_reference_tree_widget_project taxonomy_term_reference_tree_widget. It was published on May 21, 2026 and has a CVSS 3.1 base score of 5.4 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from taxonomy_term_reference_tree_widget_project. Update taxonomy_term_reference_tree_widget to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| taxonomy_term_reference_tree_widget_project | taxonomy_term_reference_tree_widget | >= 7.x-1.0, < 7.x-1.12 | Affected |
Frequently Asked Questions
What is CVE-2026-4093?
CVE-2026-4093 is a medium-severity vulnerability affecting taxonomy_term_reference_tree_widget_project taxonomy_term_reference_tree_widget. It was published on May 21, 2026 and has a CVSS 3.1 base score of 5.4 (MEDIUM).
How severe is CVE-2026-4093?
This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-4093?
Check the references section for vendor advisories and patches from taxonomy_term_reference_tree_widget_project. Update taxonomy_term_reference_tree_widget to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-4093?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-4093 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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