SB2026091047 - Input validation error in Commerce CyberSource module for Drupal
Published: September 10, 2026
Security Bulletin ID
SB2026091047
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) Input validation error (CVE-ID: CVE-2026-81159)
CWE-ID: CWE-20 - Improper input validation
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 compromise the target system.
The vulnerability exists due to the affected module does not correctly verify the integrity of data returned by the payment provider. A remote attacker can trick the site into registering that payment has been received even if it has not.
Remediation
Install update from vendor's website.