CVE-2026-4929
MEDIUMSimple Hierarchical Select (Drupal 7) XSS in term-derived output
Title source: cnaDescription
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.
References (3)
Core 3
Core References
Third Party Advisory third-party-advisory
NES patch branch comparison
https://www.herodevs.com/vulnerability-directory/cve-2026-4929
Third Party Advisory third-party-advisory
https://d7es.tag1.com/security-advisories/simple-hierarchical-select-moderately-critical-cross-site-scripting
Scores
CVSS v3
5.4
EPSS
0.0021
EPSS Percentile
10.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (2)
Drupal/Simple Hierarchical Select (shs)
7.x-1.0 - 7.x-1.11
simple_hierarchical_select_project/simple_hierarchical_select
7.x-1.0 - 7.x-1.10
Published
May 21, 2026
Tracked Since
May 22, 2026