CVE-2020-21082

Name: CVE-2020-21082
Creator: NVD / NIST
Published: 2021-09-14T16:15:09.39+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.64%

Last modified Jun 17, 2026

CVE-2020-21082 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A cross-site scripting (XSS) vulnerability in the background administrator article management module of Maccms 8.0 allows attackers to steal administrator and user cookies via crafted payloads in the text fields for Chinese and English names.. EPSS estimates a 0.64% chance of exploitation in the next 30 days.

Description

A cross-site scripting (XSS) vulnerability in the background administrator article management module of Maccms 8.0 allows attackers to steal administrator and user cookies via crafted payloads in the text fields for Chinese and English names.

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

0.64%

46.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Maccms	Maccms	8.0

References

https://github.com/magicblack/maccms8/issues/2Exploit, Third Party Advisory
https://github.com/magicblack/maccms8/issues/2Exploit, Third Party Advisory

Timeline

Published: Sep 14, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-21082?

How severe is CVE-2020-21082?

CVE-2020-21082 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.64% probability of exploitation in the next 30 days.

How do I fix CVE-2020-21082?

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-2020-21082?

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

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Source: NVD / NIST