CVE-2019-20436

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. If there is a claim dialect configured with an XSS payload in the dialect URI, and a user picks up this dialect's URI and adds it as the service provider claim dialect while configuring the service provider, that payload gets executed. The attacker also needs to have privileges to log in to the management console, and to add and configure claim dialects.

• CWE-79

• https://cybersecurityworks.com/zerodays/cve-2019-20436-wso2.htmlExploit, Third Party Advisory
• https://docs.wso2.com/display/Security/Security+Advisory+WSO2-2019-0634Vendor Advisory
• https://github.com/cybersecurityworks/Disclosed/issues/19Exploit, Third Party Advisory
• https://cybersecurityworks.com/zerodays/cve-2019-20436-wso2.htmlExploit, Third Party Advisory
• https://docs.wso2.com/display/Security/Security+Advisory+WSO2-2019-0634Vendor Advisory
• https://github.com/cybersecurityworks/Disclosed/issues/19Exploit, Third Party Advisory

Published

Jan 28, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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