CVE-2015-9057: Proxmox Mail Gateway

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

Multiple cross-site scripting (XSS) vulnerabilities in Proxmox Mail Gateway prior to hotfix 4.0-8-097d26a9 allow remote attackers to inject arbitrary web script or HTML via multiple parameters, related to /users/index.htm, /quarantine/spam/manage.htm, /quarantine/spam/whitelist.htm, /queues/mail/index/, /system/ssh.htm, /queues/mail/?domain=, and /quarantine/virus/manage.htm.

Affected products

• Proxmox Proxmox Mail Gateway: up to and including 4.0-4\/b38fc5d9

Published 2017-05-03. Last modified 2026-06-17.