CVE-2020-28455

Name: CVE-2020-28455
Creator: NVD / NIST
Published: 2022-07-25T14:15:09.713+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.50%

Last modified Jun 17, 2026

CVE-2020-28455 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. This affects all versions of package markdown-it-toc. The title of the generated toc and the contents of the header are not escaped.. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

This affects all versions of package markdown-it-toc. The title of the generated toc and the contents of the header are not escaped.

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

0.50%

38.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Markdown-It-Toc Project	Markdown-It-Toc	All versions

References

https://security.snyk.io/vuln/SNYK-JS-MARKDOWNITTOC-1044067Exploit, Third Party Advisory
https://security.snyk.io/vuln/SNYK-JS-MARKDOWNITTOC-1044067Exploit, Third Party Advisory

Timeline

Published: Jul 25, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-28455?

This affects all versions of package markdown-it-toc. The title of the generated toc and the contents of the header are not escaped.

How severe is CVE-2020-28455?

CVE-2020-28455 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2020-28455?

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-2020-28455?

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

Scan your code now

Source: NVD / NIST