CVE-2017-20028: Humhub

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

A vulnerability was found in HumHub 0.20.1/1.0.0-beta.3. It has been classified as critical. This affects an unknown part. The manipulation leads to privilege escalation. It is possible to initiate the attack remotely. Upgrading to version 1.0.0 is able to address this issue. It is recommended to upgrade the affected component.

Affected products

• Humhub Humhub: version 0.20.1 only; version 1.0.0 only

Published 2022-06-09. Last modified 2026-06-17.