CVE-2017-15878: Keystonejs Keystone

Medium severity, CVSS 6.1. EPSS: 3.4% chance of exploitation in the next 30 days.

A cross-site scripting (XSS) vulnerability exists in fields/types/markdown/MarkdownType.js in KeystoneJS before 4.0.0-beta.7 via the Contact Us feature.

Affected products

• Keystonejs Keystone: before 4.0.0 (fixed in 4.0.0)

Published 2017-10-24. Last modified 2026-06-17.