CVE-2025-5770: api manager XSS — Fix

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.

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CVSS v3.1 Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
wso2	api_control_plane	All
wso2	api_manager	All
wso2	api_manager	All
wso2	api_manager	All
wso2	api_manager	All
wso2	identity_server	All
wso2	identity_server	All
wso2	identity_server	All
wso2	identity_server	All

References

Advisories & Patches

https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-4270/

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2025-5770? +

CVE-2025-5770 has a CVSS v3.1 score of 6.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-5770? +

CVE-2025-5770 affects products from wso2, specifically: api_control_plane, api_manager, identity_server. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-5770? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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