CVE-2019-20437: XSS
An issue was discovered in WSO2 API Manager 2.6.0, WSO2 IS as Key Manager 5.7.0, and WSO2 Identity Server 5.8.0. When a custom claim dialect with an XSS payload is configured in the identity provider basic claim configuration, that payload gets executed, if a user picks up that dialect's URI as the provisioning claim in the advanced claim configuration of the same Identity Provider. The attacker also needs to have privileges to log in to the management console, and to add and update identity provider configurations.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2019-20437?
CVE-2019-20437 is a vulnerability found in WSO2 API Manager, WSO2 IS as Key Manager, and WSO2 Identity Server that allows for XSS payload execution through a custom claim dialect.
What is the severity of CVE-2019-20437?
The severity of CVE-2019-20437 is medium with a CVSS score of 6.1.
How does CVE-2019-20437 affect WSO2 API Manager?
CVE-2019-20437 affects WSO2 API Manager, specifically version 2.6.0.
How does CVE-2019-20437 affect WSO2 Identity Server?
CVE-2019-20437 affects WSO2 Identity Server, specifically versions 5.7.0 and 5.8.0.
How can I fix CVE-2019-20437?
To fix CVE-2019-20437, you should update WSO2 API Manager to a version that does not have this vulnerability, and apply any relevant patches or updates for WSO2 Identity Server versions 5.7.0 and 5.8.0.