CVE-2025-10503

Medium

Description

The authentication endpoint accepts user-supplied input without enforcing expected validation constraints, leading to a lack of proper output encoding. This allows for the injection of malicious JavaScript payloads, enabling reflected cross-site scripting. An attacker can leverage this vulnerability to redirect the user's browser to a malicious website, modify the user interface of the web page, retrieve information from the browser, or cause other harmful actions. However, due to the protection of session-related cookies with the httpOnly flag, session hijacking is not possible.

SeverityMedium
CVSS6.1
Exploit probability—
ProductWso2 Identity Server
PublishedApr 29, 2026
First seenApr 29, 2026

How to fix

Affected products

ProductAffected versionsFixed in
wso2 identity_server7.1.0 ≤ v < 7.1.0.287.1.0.28

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