CVE-2026-4093

MEDIUMNVD 5.15.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.1 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 85% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
5.1

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.

CVSS v3
5.1
EG Score
5.1(medium)
EPSS
14.6%
KEV
Not listed

Published

May 21, 2026

Last Modified

May 21, 2026

References (2)

Frequently asked(5)

What is CVE-2026-4093?
CVE-2026-4093 is a medium vulnerability published on May 21, 2026. 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…
When was CVE-2026-4093 disclosed?
CVE-2026-4093 was first published in the National Vulnerability Database on May 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4093 actively exploited?
CVE-2026-4093 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 14.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-4093?
CVE-2026-4093 has a CVSS v3 base score of 5.1 (NVD).
How do I remediate CVE-2026-4093?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4093, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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