PT-2021-12713 · Mendix · Mendixsso

Published 2021-01-06 · Updated 2021-01-12 · CVE-2020-8160

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions: MendixSSO versions 2.1.1 and earlier

Description: The issue is caused by the reflection of user-supplied data without appropriate HTML escaping or output encoding in the openid handler, leading to a Cross-Site Scripting vulnerability via the URL path. This allows a JavaScript payload to be injected into the endpoint, causing it to be executed within the context of the victim's browser.

Recommendations: For MendixSSO versions 2.1.1 and earlier, update to a version later than 2.1.1 to resolve the issue. As a temporary workaround, consider restricting access to the openid handler endpoints to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2020-8160

Affected Products

Mendixsso

References · 5

• https://osv.dev/vulnerability/CVE-2020-8160 · Vendor Advisory
• https://marketplace.mendix.com/link/component/111349 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-8160 · Security Note
• https://t.me/cibsecurity/21671 · Telegram Post
• https://hackerone.com/reports/838178 · Note