CVE-2020-21993

Name: CVE-2020-21993
Creator: NVD / NIST
Published: 2021-04-28T15:15:07.883+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.81%

Last modified Jun 17, 2026

CVE-2020-21993 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. In WEMS Limited Enterprise Manager 2.58, input passed to the GET parameter 'email' is not properly sanitized before being returned to the user. This can be exploited to execute arbitrary HTML code in a user's browser session in context of an affected site.. EPSS estimates a 0.81% chance of exploitation in the next 30 days.

Description

In WEMS Limited Enterprise Manager 2.58, input passed to the GET parameter 'email' is not properly sanitized before being returned to the user. This can be exploited to execute arbitrary HTML code in a user's browser session in context of an affected site.

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

0.81%

52.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Wems	Enterprise Manager	2.19.7959
Wems	Enterprise Manager	2.55.8782
Wems	Enterprise Manager	2.55.8806
Wems	Enterprise Manager	2.58.8903

References

https://cxsecurity.com/issue/WLB-2020010032Exploit, Third Party Advisory
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5551.phpExploit, Third Party Advisory
https://cxsecurity.com/issue/WLB-2020010032Exploit, Third Party Advisory
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5551.phpExploit, Third Party Advisory

Timeline

Published: Apr 28, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-21993?

How severe is CVE-2020-21993?

CVE-2020-21993 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.81% probability of exploitation in the next 30 days.

How do I fix CVE-2020-21993?

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-2020-21993?

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

Scan your code now

Source: NVD / NIST