CVE-2026-4929

EUVD-2026-31381

21.05.2026, 22:16

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.

Cross-site Scripting

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	5.4 MEDIUM	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Base Score

CVSS 3.x

EPSS Score

Percentile: 10%

Affected Products (NVD)

Vendor	Product	Version
simple_hierarchical_select_project	simple_hierarchical_select	7.x-1.0 ≤ 𝑥 ≤ 7.x-1.10

𝑥

= Vulnerable software versions

Known Exploits!

Common Weakness Enumeration

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References

https://d7es.tag1.com/security-advisories/simple-hierarchical-select-moderately-critical-cross-site-scripting

https://www.herodevs.com/vulnerability-directory/cve-2026-4929

https://www.herodevs.com/vulnerability-directory/cve-2026-4929?nes-for-drupal-7