CVE-2020-19952

Name: CVE-2020-19952
Creator: NVD / NIST
Published: 2023-08-11T14:15:09.927+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.53%

Last modified Jun 17, 2026

CVE-2020-19952 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Cross Site Scripting (XSS) vulnerability in Rendering Engine in jbt Markdown Editor thru commit 2252418c27dffbb35147acd8ed324822b8919477, allows remote attackers to execute arbirary code via crafted payload or opening malicious .md file.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.

Description

Cross Site Scripting (XSS) vulnerability in Rendering Engine in jbt Markdown Editor thru commit 2252418c27dffbb35147acd8ed324822b8919477, allows remote attackers to execute arbirary code via crafted payload or opening malicious .md file.

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

0.53%

40.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Jbt	Live \(Github-Flavored\) Markdown Editor	< 2019-10-27

References

https://github.com/jbt/markdown-editor/commit/228f1947a5242a6fbe2995d72d21b7e5f5178f35Patch
https://github.com/jbt/markdown-editor/issues/106Exploit, Issue Tracking, Third Party Advisory
https://github.com/jbt/markdown-editor/pull/110Patch
https://github.com/jbt/markdown-editor/commit/228f1947a5242a6fbe2995d72d21b7e5f5178f35Patch
https://github.com/jbt/markdown-editor/issues/106Exploit, Issue Tracking, Third Party Advisory
https://github.com/jbt/markdown-editor/pull/110Patch

Timeline

Published: Aug 11, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-19952?

How severe is CVE-2020-19952?

CVE-2020-19952 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.

How do I fix CVE-2020-19952?

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-2020-19952?

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

Scan your code now

Source: NVD / NIST