An issue was discovered in WSO2 API Manager 2.1.0 and 2.6.0. Reflected XSS exists in the carbon part of the product.

References

• patch https://github.com/wso2-extensions/identity-inbound-auth-oauth/pull/978/files
• patch https://wso2.com/security-patch-releases/api-manager
• patch https://www.excellium-services.com/cert-xlm-advisory/cve-2018-20737/