The authentication endpoint does not properly encode user-supplied input before rendering it within the web page. This lack of output encoding allows an attacker to inject malicious JavaScript payloads into the authentication flow, which are then executed by the victim's browser.

By exploiting this vulnerability, an attacker can redirect the user's browser to a malicious website, modify the content of the web page displayed to the user, or exfiltrate information from the browser. However, due to the implementation of the httpOnly flag on session-related sensitive cookies, session hijacking and similar attacks are not possible.

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Advisories

No advisories yet.

Fixes

Solution

Follow the instructions given on https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4217/#solution


Workaround

No workaround given by the vendor.

History

Tue, 03 Nov 2026 08:00:00 +0000

Type Values Removed Values Added
First Time appeared Wso2 api Control Plane
Wso2 api Manager
Wso2 identity Server
Vendors & Products Wso2 api Control Plane
Wso2 api Manager
Wso2 identity Server

Tue, 03 Nov 2026 06:30:00 +0000

Type Values Removed Values Added
Description The authentication endpoint does not properly encode user-supplied input before rendering it within the web page. This lack of output encoding allows an attacker to inject malicious JavaScript payloads into the authentication flow, which are then executed by the victim's browser. By exploiting this vulnerability, an attacker can redirect the user's browser to a malicious website, modify the content of the web page displayed to the user, or exfiltrate information from the browser. However, due to the implementation of the httpOnly flag on session-related sensitive cookies, session hijacking and similar attacks are not possible.
Title Reflected Cross-Site Scripting via Authentication Endpoint in Multiple WSO2 Products Allows Browser Redirection and UI Modification
First Time appeared Wso2
Wso2 wso2 Api Control Plane
Wso2 wso2 Api Manager
Wso2 wso2 Identity Server
Weaknesses CWE-79
CPEs cpe:2.3:a:wso2:wso2_api_control_plane:*:*:*:*:*:*:*:*
cpe:2.3:a:wso2:wso2_api_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:wso2:wso2_identity_server:*:*:*:*:*:*:*:*
Vendors & Products Wso2
Wso2 wso2 Api Control Plane
Wso2 wso2 Api Manager
Wso2 wso2 Identity Server
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: WSO2

Published:

Updated: 2026-11-03T06:11:52.652Z

Reserved: 2025-06-06T03:12:09.057Z

Link: CVE-2025-5769

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-03T07:17:41.527

Modified: 2026-11-03T07:17:41.527

Link: CVE-2025-5769

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-03T07:45:06Z

Weaknesses