SB20260925235 - Information disclosure in Webform REST module for Drupal
Published: September 25, 2026
Security Bulletin ID
SB20260925235
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper access control (CVE-ID: CVE-2026-96391)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to the affected module does not sufficiently check permission to webform and webform submission entities when retrieving webform elements or fields. A remote user can view unauthorized webform elements and submission data.
Remediation
Install update from vendor's website.