PT-2026-35879 · Wso2 · Wso2 Identity Server+1

Published 2026-04-29 · Updated 2026-05-01 · CVE-2025-10503

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions The product name cannot be determined (affected versions not specified)

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 (a flaw where a script is reflected off a web application to the user's browser). An attacker can leverage this to redirect the user's browser to a malicious website, modify the web page user interface, or retrieve information from the browser. Session hijacking is not possible because session-related cookies are protected with the httpOnly flag.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-10503

Affected Products

Wso2 Identity Server

Identityserver

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2025-10503 · Security Note
• https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4577 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/2049465286521242005 · Twitter Post
• https://twitter.com/CVEarity/status/2049716725416149164 · Twitter Post
• https://t.me/cveNotify/161790 · Telegram Post
• https://t.me/cveNotify/161589 · Telegram Post
• https://twitter.com/CVEnew/status/2049594397105213774 · Twitter Post