GHSA-vfvf-mqq8-rwqc

Source

https://github.com/advisories/GHSA-vfvf-mqq8-rwqc

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2019/02/GHSA-vfvf-mqq8-rwqc/GHSA-vfvf-mqq8-rwqc.json

JSON Data

https://api.test.osv.dev/v1/vulns/GHSA-vfvf-mqq8-rwqc

Aliases

CVE-2016-10531

Published

2019-02-18T23:58:20Z

Modified

2023-11-01T04:46:34.395363Z

Severity

6.1 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator

Summary

Sanitization bypass using HTML Entities in marked

Details

Affected versions of marked are susceptible to a cross-site scripting vulnerability in link components when sanitize:true is configured.

Proof of Concept

This flaw exists because link URIs containing HTML entities get processed in an abnormal manner. Any HTML Entities get parsed on a best-effort basis and included in the resulting link, while if that parsing fails that character is omitted.

For example:

A link URI such as

javascript&#x58document;alert&#40;1&#41;

Renders a valid link that when clicked will execute alert(1).

Recommendation

Update to version 0.3.6 or later.

Database specific

{
    "nvd_published_at": null,
    "cwe_ids": [
        "CWE-79"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:57:38Z"
}

References

Affected packages

npm / marked

Package

Name: marked; View open source insights on deps.dev
Purl: pkg:npm/marked

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.3.6