CVE-2020-19949

Name: CVE-2020-19949
Creator: NVD / NIST
Published: 2021-09-23T20:15:07.527+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.57%

Last modified Jun 17, 2026

CVE-2020-19949 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. A cross-site scripting (XSS) vulnerability in the /link/add.html component of YzmCMS v5.3 allows attackers to execute arbitrary web scripts or HTML.. EPSS estimates a 0.57% chance of exploitation in the next 30 days.

Description

A cross-site scripting (XSS) vulnerability in the /link/add.html component of YzmCMS v5.3 allows attackers to execute arbitrary web scripts or HTML.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

0.57%

42.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Yzmcms	Yzmcms	5.3

References

https://github.com/yzmcms/yzmcms/issues/21Exploit, Third Party Advisory
https://github.com/yzmcms/yzmcms/issues/21Exploit, Third Party Advisory

Timeline

Published: Sep 23, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-19949?

A cross-site scripting (XSS) vulnerability in the /link/add.html component of YzmCMS v5.3 allows attackers to execute arbitrary web scripts or HTML.

How severe is CVE-2020-19949?

CVE-2020-19949 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.57% probability of exploitation in the next 30 days.

How do I fix CVE-2020-19949?

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-2020-19949?

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

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Source: NVD / NIST