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Package details: pkg:npm/mdast-util-to-hast@13.0.0
purl pkg:npm/mdast-util-to-hast@13.0.0
Next non-vulnerable version 13.2.1
Latest non-vulnerable version 13.2.1
Risk
Vulnerabilities affecting this package (1)
Vulnerability Summary Fixed by
VCID-mqd9-1jwh-kuaq
Aliases:
CVE-2025-66400
GHSA-4fh9-h7wg-q85m
mdast-util-to-hast has unsanitized class attribute Multiple (unprefixed) classnames could be added in markdown source by using character references. This could make rendered user supplied markdown `code` elements appear like the rest of the page. The following markdown: ````markdown ```js xss ``` ````
13.2.1
Affected by 0 other vulnerabilities.
Vulnerabilities fixed by this package (0)
Vulnerability Summary Aliases
This package is not known to fix vulnerabilities.

Date Actor Action Vulnerability Source VulnerableCode Version
2026-05-31T01:06:05.052627+00:00 GHSA Importer Affected by VCID-mqd9-1jwh-kuaq https://github.com/advisories/GHSA-4fh9-h7wg-q85m 38.6.0
2026-05-30T21:05:22.235783+00:00 GitLab Importer Affected by VCID-mqd9-1jwh-kuaq https://gitlab.com/gitlab-org/advisories-community/-/blob/main/npm/mdast-util-to-hast/CVE-2025-66400.yml 38.6.0