CVE-2025-10503CWE-79cross-site-scripting

CVE-2025-10503

Medium · published April 29, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
6.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00173 · 6.4th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-04-29T13:16Z
Affected products (1)
ProductVersionsFixed in
wso2/identity_server≥ 7.1.0, < 7.1.0.287.1.0.28
References (1)
EPSS history
Timeline
  • 29 APR 08:08Z
    Reflected Cross-Site Scripting via Authentication Endpoint in WSO2 Identity Server
    cvelistv5