What is CVE-2021-31813?

CVE-2021-31813 is a medium-severity vulnerability in Zohocorp Manageengine Applications Manager, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-07-01.

How severe is CVE-2021-31813?

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

Is CVE-2021-31813 known to be exploited?

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

XSS in Zohocorp Manageengine Applications Manager

CVE-2021-31813

Zoho ManageEngine Applications Manager before 15130 is vulnerable to Stored XSS while importing malicious user details (e.g., a crafted user name) from AD.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-07-01 · 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: 0.783 (99.6th percentile), scored 2026-10-29.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.783 · newest: 0.783 · change: 0.000

Affected products

Zohocorp Manageengine Applications Manager — versions 15.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

www.manageengine.com/products/applications_manager/security-updates/security-up… (Vendor Advisory)
raxis.com/blog/cve-2021-31813 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-31813?: CVE-2021-31813 is a medium-severity vulnerability in Zohocorp Manageengine Applications Manager, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-07-01.
How severe is CVE-2021-31813?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2021-31813 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.