CVE-2020-5497: Mitreid Connect

Medium severity, CVSS 6.1. EPSS: 2.1% chance of exploitation in the next 30 days.

The OpenID Connect reference implementation for MITREid Connect through 1.3.3 allows XSS due to userInfoJson being included in the page unsanitized. This is related to header.tag. The issue can be exploited to execute arbitrary JavaScript.

Affected products

• Mitreid Connect: up to and including 1.3.3

Published 2020-01-04. Last modified 2026-06-17.