This vulnerability in YayCommerce SMTP for Amazon SES (up to version 1.9) is caused by improper neutralization of special elements in SQL commands, leading to SQL Injection. The CVSS 3.1 vector indicates network attack vector, low attack complexity, high privileges required, no user interaction, scope changed, high confidentiality impact, no integrity impact, and low availability impact. The vulnerability allows an attacker with high privileges to potentially execute unauthorized SQL commands, impacting confidentiality and availability of the system. No patch or official fix information is currently provided, and the product is not a cloud service, so remediation depends on vendor updates.

Successful exploitation could allow an attacker with high privileges to execute unauthorized SQL commands, potentially leading to disclosure of sensitive data (high confidentiality impact) and partial disruption of service (low availability impact). Integrity is not impacted according to the CVSS vector. No known exploits in the wild have been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor for vendor updates and avoid exposing the affected versions to untrusted networks. Restricting access to high-privilege accounts and applying principle of least privilege may reduce risk until a fix is available.