Django REST framework

Vulnerability Instance

Lookup for vulnerabilities affecting packages.

Vulnerability_idVCID-mqd9-1jwh-kuaq
Summary
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
```
````
Aliases
0
alias CVE-2025-66400
1
alias GHSA-4fh9-h7wg-q85m
Fixed_packages
0
url pkg:npm/mdast-util-to-hast@13.2.1
purl pkg:npm/mdast-util-to-hast@13.2.1
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:npm/mdast-util-to-hast@13.2.1
Affected_packages
0
url pkg:npm/mdast-util-to-hast@13.0.0
purl pkg:npm/mdast-util-to-hast@13.0.0
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-mqd9-1jwh-kuaq
resource_url http://public2.vulnerablecode.io/packages/pkg:npm/mdast-util-to-hast@13.0.0
References
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-66400.json
reference_id
reference_type
scores
0
value 5.3
scoring_system cvssv3
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-66400.json
1
reference_url https://api.first.org/data/v1/epss?cve=CVE-2025-66400
reference_id
reference_type
scores
0
value 0.00086
scoring_system epss
scoring_elements 0.24765
published_at 2026-05-30T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2025-66400
2
reference_url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
reference_id
reference_type
scores
0
value 4.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
3
reference_url https://github.com/syntax-tree/mdast-util-to-hast
reference_id
reference_type
scores
0
value 5.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
1
value 6.9
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
2
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/syntax-tree/mdast-util-to-hast
4
reference_url https://github.com/syntax-tree/mdast-util-to-hast/commit/6fc783ae6abdeb798fd5a68e7f3f21411dde7403
reference_id
reference_type
scores
0
value 5.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
1
value 6.9
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
2
value MODERATE
scoring_system generic_textual
scoring_elements
3
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-02T15:34:16Z/
url https://github.com/syntax-tree/mdast-util-to-hast/commit/6fc783ae6abdeb798fd5a68e7f3f21411dde7403
5
reference_url https://github.com/syntax-tree/mdast-util-to-hast/commit/ab3a79570a1afbfa7efef5d4a0cd9b5caafbc5d7
reference_id
reference_type
scores
0
value 5.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
1
value 6.9
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
2
value MODERATE
scoring_system generic_textual
scoring_elements
3
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-02T15:34:16Z/
url https://github.com/syntax-tree/mdast-util-to-hast/commit/ab3a79570a1afbfa7efef5d4a0cd9b5caafbc5d7
6
reference_url https://bugzilla.redhat.com/show_bug.cgi?id=2418157
reference_id 2418157
reference_type
scores
url https://bugzilla.redhat.com/show_bug.cgi?id=2418157
7
reference_url https://nvd.nist.gov/vuln/detail/CVE-2025-66400
reference_id CVE-2025-66400
reference_type
scores
0
value 5.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
1
value 6.9
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
2
value MODERATE
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2025-66400
8
reference_url https://github.com/advisories/GHSA-4fh9-h7wg-q85m
reference_id GHSA-4fh9-h7wg-q85m
reference_type
scores
0
value MODERATE
scoring_system cvssv3.1_qr
scoring_elements
url https://github.com/advisories/GHSA-4fh9-h7wg-q85m
9
reference_url https://github.com/syntax-tree/mdast-util-to-hast/security/advisories/GHSA-4fh9-h7wg-q85m
reference_id GHSA-4fh9-h7wg-q85m
reference_type
scores
0
value 5.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
1
value MODERATE
scoring_system cvssv3.1_qr
scoring_elements
2
value 6.9
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
3
value MODERATE
scoring_system generic_textual
scoring_elements
4
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-02T15:34:16Z/
url https://github.com/syntax-tree/mdast-util-to-hast/security/advisories/GHSA-4fh9-h7wg-q85m
Weaknesses
0
cwe_id 20
name Improper Input Validation
description The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
1
cwe_id 915
name Improperly Controlled Modification of Dynamically-Determined Object Attributes
description The product receives input from an upstream component that specifies multiple attributes, properties, or fields that are to be initialized or updated in an object, but it does not properly control which attributes can be modified.
2
cwe_id 937
name OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
description Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013.
3
cwe_id 1035
name OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
description Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017.
4
cwe_id 79
name Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
description The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Exploits
Severity_range_score4.0 - 6.9
Exploitability0.5
Weighted_severity6.2
Risk_score3.1
Resource_urlhttp://public2.vulnerablecode.io/vulnerabilities/VCID-mqd9-1jwh-kuaq