CVE-2021-37413: Grandcom Dynweb

Critical severity, CVSS 9.8. EPSS: 1.9% chance of exploitation in the next 30 days.

GRANDCOM DynWEB before 4.2 contains a SQL Injection vulnerability in the admin login interface. A remote unauthenticated attacker can exploit this vulnerability to obtain administrative access to the webpage, access the user database, modify web content and upload custom files. The backend login script does not verify and sanitize user-provided strings.

Affected products

• Grandcom Dynweb: before 4.2 (fixed in 4.2)

Published 2022-05-19. Last modified 2026-06-17.