CVE-2025-13829

High

Description

Incorrect Authorization vulnerability in Data Illusion Zumbrunn NGSurvey allows any logged-in user to obtain the private information of any other user. Critical information retrieved: * APIKEY (1 year user Session) * RefreshToken (10 minutes user Session) * Password hashed with bcrypt * User IP * Email * Full Name

SeverityHigh

CVSS8.6

Exploit probability—

ProductNGSurvey

PublishedDec 1, 2025

First seenDec 1, 2025

Weakness typeCWE-863Incorrect authorization

How to fix

Update

Data Illusion Zumbrunn NGSurvey3.6.17 or later

Vendor advisories

docs.ngsurvey.com/installation-setup/change-log#id-3.6.17-2025-05-28

Affected products

Product	Affected versions	Fixed in
Data Illusion Zumbrunn NGSurvey	v < 3.6.17	3.6.17

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