CVE-2021-41609: Classapps Selectsurvey.net

Critical severity, CVSS 9.8. EPSS: 2.1% chance of exploitation in the next 30 days.

SQL injection in the ID parameter of the UploadedImageDisplay.aspx endpoint of SelectSurvey.NET before 5.052.000 allows a remote, unauthenticated attacker to retrieve data from the application's backend database via boolean-based blind and UNION injection.

Affected products

• Classapps Selectsurvey.net: before 5.052.000 (fixed in 5.052.000)

Published 2022-01-28. Last modified 2026-06-17.