What is CVE-2020-15521?

CVE-2020-15521 is a medium-severity vulnerability in Zohocorp Manageengine Applications Manager, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-09-25.

How severe is CVE-2020-15521?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Zohocorp Manageengine Applications Manager

CVE-2020-15521

Zoho ManageEngine Applications Manager before 14 build 14730 has no protection against jsp/header.jsp Cross-site Scripting (XSS) .

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-09-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.017 (76.3th percentile), scored 2026-10-05.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Zohocorp Manageengine Applications Manager — versions 14.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.manageengine.com (Product)
www.manageengine.com/products/applications_manager/issues.html (Vendor Advisory)

Frequently asked questions

What is CVE-2020-15521?: CVE-2020-15521 is a medium-severity vulnerability in Zohocorp Manageengine Applications Manager, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-09-25.
How severe is CVE-2020-15521?: Medium severity. CVSS v3 base score is 6.1 out of 10.