XSS in Outsystems Service Center

CVE-2026-40126

OutSystems Service Center is vulnerable to a DOM-based Cross-Site Scripting (XSS) attack that can be exploited by a low-privileged attacker via the upload of a file with a malicious filename containing JavaScript code. The vulnerability exists in all locations where a file can be attached and prepared for upload to the server. This issue was fixed in OutSystems Service Center version 11.41.2

Vulnerability class: XSS (Cross-Site Scripting)

Affected products

Weakness classification (CWE)

References