CVE-2025-5769
Received Received - Intake

Reflected XSS in Authentication Endpoint

Publication date: 2026-11-03

Last updated on: 2026-11-03

Assigner: WSO2 LLC

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.

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Meta Information

Published
2026-11-03
Last Modified
2026-11-03
Generated
2026-11-03
AI Q&A
2026-11-03
EPSS Evaluated
N/A
NVD
CVE-2025-5769

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This vulnerability is a cross-site scripting (XSS) flaw in the authentication endpoint. It occurs because user input is not properly encoded before being displayed on the web page. This allows attackers to inject malicious JavaScript code into the authentication process.

Impact Analysis

An attacker could use this to redirect your browser to a malicious site, alter the content you see on the page, or steal sensitive information from your browser. However, session hijacking is prevented due to the use of httpOnly cookies.

Mitigation Strategies

Implement proper output encoding for user-supplied input in the authentication endpoint to prevent JavaScript injection. Ensure all dynamic content is sanitized before rendering in the web page.

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