This vulnerability, identified as CVE-2025-31576, is a missing authorization issue in the PostmarkApp Email Integrator product by Gagan Deep Singh. It arises from incorrectly configured access control security levels, which may allow users with limited privileges to perform unauthorized actions. The affected versions include all versions up to 2.4. The CVSS v3.1 base score is 4.3, reflecting a medium severity with network attack vector, low attack complexity, requiring privileges, no user interaction, unchanged scope, no confidentiality impact, limited integrity impact, and no availability impact.

The impact is limited to integrity as unauthorized users with some privileges may perform actions they should not be allowed to. There is no confidentiality or availability impact reported. No known exploits exist in the wild, reducing immediate risk.

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 updates from the vendor. In the meantime, review and tighten access control configurations to ensure proper authorization enforcement where possible.