What is CVE-2021-28382?

CVE-2021-28382 is a medium-severity vulnerability in Zohocorp Manageengine Key Manager Plus, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-06-07.

How severe is CVE-2021-28382?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2021-28382 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Zohocorp Manageengine Key Manager Plus

CVE-2021-28382

Zoho ManageEngine Key Manager Plus before 6001 allows Stored XSS on the user-management page while importing malicious user details from AD.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-06-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.012 (66.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Zohocorp Manageengine Key Manager Plus — versions 6.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

www.manageengine.com/key-manager/release-notes.html (Vendor Advisory)
raxis.com/blog/cve-2021-28382 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-28382?: CVE-2021-28382 is a medium-severity vulnerability in Zohocorp Manageengine Key Manager Plus, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-06-07.
How severe is CVE-2021-28382?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2021-28382 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.