CVE-2020-22421

Name: CVE-2020-22421
Creator: NVD / NIST
Published: 2021-12-08T04:15:06.54+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.80%

Last modified Jun 17, 2026

CVE-2020-22421 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 74CMS v6.0.4 was discovered to contain a cross-site scripting (XSS) vulnerability via /index.php?m=&c=help&a=help_list&key.. EPSS estimates a 0.80% chance of exploitation in the next 30 days.

Description

74CMS v6.0.4 was discovered to contain a cross-site scripting (XSS) vulnerability via /index.php?m=&c=help&a=help_list&key.

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

0.80%

51.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
74cms	74cms	6.0.4

References

https://github.com/congcong9184-123/congcong9184-123.github.io/blob/master/74cms.docxExploit, Third Party Advisory
https://github.com/congcong9184-123/congcong9184-123.github.io/blob/master/74cms.docxExploit, Third Party Advisory

Timeline

Published: Dec 8, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-22421?

74CMS v6.0.4 was discovered to contain a cross-site scripting (XSS) vulnerability via /index.php?m=&c=help&a=help_list&key.

How severe is CVE-2020-22421?

CVE-2020-22421 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.80% probability of exploitation in the next 30 days.

How do I fix CVE-2020-22421?

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-2020-22421?

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

Scan your code now

Source: NVD / NIST