XSS in Wso2 API Control Plane

CVE-2025-5770

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (9.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-5770?
CVE-2025-5770 is a medium-severity vulnerability in Wso2 API Control Plane, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-11-05.
How severe is CVE-2025-5770?
Medium severity. CVSS v3 base score is 6.1 out of 10.