CVE-2021-27956

Name: CVE-2021-27956
Creator: NVD / NIST
Published: 2021-05-20T18:15:07.6+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.61%

Last modified Jun 17, 2026

CVE-2021-27956 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Zoho ManageEngine ADSelfService Plus before 6104 allows stored XSS on the /webclient/index.html#/directory-search user search page via the e-mail address field.. EPSS estimates a 1.61% chance of exploitation in the next 30 days.

Description

Zoho ManageEngine ADSelfService Plus before 6104 allows stored XSS on the /webclient/index.html#/directory-search user search page via the e-mail address field.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

1.61%

72.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Zohocorp	Manageengine Adselfservice Plus	< 6.1
Zohocorp	Manageengine Adselfservice Plus	6.1

References

https://pitstop.manageengine.com/portal/en/community/topic/adselfservice-plus-6104-released-with-an-important-security-fixesVendor Advisory
https://raxis.com/blog/cve-2021-27956-manage-engine-xssExploit, Third Party Advisory
https://www.manageengine.comVendor Advisory
https://pitstop.manageengine.com/portal/en/community/topic/adselfservice-plus-6104-released-with-an-important-security-fixesVendor Advisory
https://raxis.com/blog/cve-2021-27956-manage-engine-xssExploit, Third Party Advisory
https://www.manageengine.comVendor Advisory

Timeline

Published: May 20, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-27956?

Zoho ManageEngine ADSelfService Plus before 6104 allows stored XSS on the /webclient/index.html#/directory-search user search page via the e-mail address field.

How severe is CVE-2021-27956?

CVE-2021-27956 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.61% probability of exploitation in the next 30 days.

How do I fix CVE-2021-27956?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-27956?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST