Medium · published November 6, 2025
A reflected cross-site scripting (XSS) vulnerability exists in the authentication endpoints of multiple WSO2 products due to a lack of output encoding. A malicious actor can inject arbitrary JavaScript payloads into the authentication endpoint, which are reflected back in the response, enabling browser-based attacks.
Exploitation may result in redirection to malicious websites, UI manipulation, or unauthorized data access from the victim’s browser. However, session-related cookies are protected with the httpOnly flag, which mitigates session hijacking via this vector.
| Product | Versions | Fixed in |
|---|---|---|
| wso2/api_control_plane | all versions | — |
| wso2/api_manager | all versions | — |
| wso2/api_manager | all versions | — |
| wso2/api_manager | all versions | — |
| wso2/api_manager | all versions | — |
| wso2/identity_server | all versions | — |
| wso2/identity_server | all versions | — |
| wso2/identity_server | all versions | — |
| wso2/identity_server | all versions | — |