Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wso2 | Api Manager | 2.6.0 |
| Wso2 | Identity Server | 5.7.0 |
Related Weaknesses (CWE)
References
- https://cybersecurityworks.com/zerodays/cve-2019-20436-wso2.htmlExploitThird Party Advisory
- https://docs.wso2.com/display/Security/Security+Advisory+WSO2-2019-0634Vendor Advisory
- https://github.com/cybersecurityworks/Disclosed/issues/19ExploitThird Party Advisory
- https://cybersecurityworks.com/zerodays/cve-2019-20436-wso2.htmlExploitThird Party Advisory
- https://docs.wso2.com/display/Security/Security+Advisory+WSO2-2019-0634Vendor Advisory
- https://github.com/cybersecurityworks/Disclosed/issues/19ExploitThird Party Advisory
FAQ
What is CVE-2019-20436?
CVE-2019-20436 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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 us...
How severe is CVE-2019-20436?
CVE-2019-20436 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-20436?
Check the references section above for vendor advisories and patch information. Affected products include: Wso2 Api Manager, Wso2 Identity Server.