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Medium · 6.1 CVE-2025-5770 EUVD-2025-37921GHSA-rc63-xm4j-4f8h

Reflected Cross-Site Scripting (XSS) in Authentication Endpoints of Multiple WSO2 Products

Published Nov 5, 2025 · Updated Nov 5, 2025 · Assigned by WSO2

Description

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.

Affected products

VendorProductAffectedFixed
WSO2 WSO2 Identity Server 6.0.0 – < 6.0.0.247, 6.1.0 – < 6.1.0.246, 7.0.0 – < 7.0.0.122, 7.1.0 – < 7.1.0.29 6.0.0.247
WSO2 WSO2 API Manager 4.2.0 – < 4.2.0.150, 4.3.0 – < 4.3.0.63, 4.4.0 – < 4.4.0.26, 4.5.0 – < 4.5.0.10 4.2.0.150
WSO2 WSO2 API Control Plane 4.5.0 – < 4.5.0.11 4.5.0.11

References