What’s Vulnerable › Vulnerabilities

CVE-2017-1000427: Marked vulnerable to XSS from data URIs

• Severity: medium (CVSS 6.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-01-02 · updated 2026-06-17
• Weakness: CWE-79

Description

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

Affected products

• markedjs marked: through 0.3.6
• Npm Marked: before 0.3.7 — fixed in 0.3.7

How to fix

Upgrade to a fixed version: Npm Marked 0.3.7. Check the vendor advisory for mitigations.

References

• 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/
• 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/
• https://snyk.io/vuln/npm:marked:20170112

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