CVE-2021-20671: Weseek Growi

High severity, CVSS 7.2. EPSS: 1.9% chance of exploitation in the next 30 days.

Invalid file validation on the upload feature in GROWI versions v4.2.2 allows a remote attacker with administrative privilege to overwrite the files on the server, which may lead to arbitrary code execution.

Affected products

• Weseek Growi: version 4.2.2 only

Published 2021-03-10. Last modified 2026-06-17.