CVE-2021-20147: Zohocorp ManageEngine Adselfservice Plus

Medium severity, CVSS 5.3. EPSS: 6.9% chance of exploitation in the next 30 days.

ManageEngine ADSelfService Plus below build 6116 contains an observable response discrepancy in the UMCP operation of the ChangePasswordAPI. This allows an unauthenticated remote attacker to determine whether a Windows domain user exists.

Affected products

• Zohocorp ManageEngine Adselfservice Plus: up to and including 6.0; version 6.1 only

Published 2022-01-03. Last modified 2026-06-17.