CVE-2026-4929

Simple Hierarchical Select (Drupal 7) XSS in term-derived output

MEDIUM
5.4
CVSS Score
Published: May 21, 2026 at 09:48 PM UTC
Updated: July 23, 2026 at 07:32 PM UTC
2 products affected across 2 vendorsSimple Hierarchical SelectHierarchical Select Project Simple Hierarchical Select

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

Simple Hierarchical Select (SHS) for Drupal 7 contains cross-site scripting risk due to improper output escaping of term-derived text. Confirmed affected paths include field formatter output (shs_field_formatter_view) and term-tree child-term data generation (shs_term_get_children). Malicious taxonomy term names can be rendered unsafely depending on output context. This affects versions from 7.x-1.0 through (and including) 7.x-1.10.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

7.x-1.0 ≤ v < 7.x-1.117.x-1.0
Affected range stops below 7.x-1.11, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-79

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