SB2026090322 - Improper access control in Monobank payment API module for Drupal
Published: September 3, 2026
Security Bulletin ID
SB2026090322
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper access control (CVE-ID: CVE-2026-84918)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/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 verify the Monobank webhook signature before processing payment status callbacks. A remote attacker can bypass payment verification and manipulate payment status callbacks.
Remediation
Install update from vendor's website.