Vulnerability · Published Dec 1, 2025 · Assigned by TCS-CERT

CVE-2025-13829

High 8.6

In plain English

A high-severity incorrect authorization in NGSurvey from Data Illusion Zumbrunn. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).

Severity (CVSS 4.0)8.6High

Exploit odds (30 days)0.3%top 74.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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

Affected products (as reported)

Vendor	Product	Versions
Data Illusion Zumbrunn	NGSurvey	0 – before 3.6.17

Weakness: CWE-863 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/AU:Y

References

https://docs.ngsurvey.com/installation-setup/change-log#id-3.6.17-2025-05-28 vendor-advisory, release-notes