CVE-2025-15479 MEDIUM

CVE-2025-15479: NGSurvey Enterprise 3.6.4 incorrect authorization exposes other users’ API keys and personal data

Vendor Data Illusion Zumbrunn
Product NGSurvey
Published January 7, 2026
Last update January 7, 2026
View on NVD All CVEs

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

What the vulnerability does

01Description

Stored cross-site scripting (XSS, CWE-79) in the survey content and administration functionality in Data Illusion Zumbrunn NGSurvey Enterprise Edition 3.6.4 on all supported platforms ( on Windows and Linux servers ) allows authenticated remote users with survey creation or edit privileges to execute arbitrary JavaScript in other users’ browsers, steal session information and perform unauthorized actions on their behalf via crafted survey content that is rendered without proper output encoding.

Key dates

02Disclosure timeline

January 7, 2026 CVE published
January 7, 2026 Record updated