Marked vulnerable to XSS from data URIs

Description

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

Recommendation

Update the marked package to the latest compatible version. Followings are version details:

• Affected version(s): < 0.3.7
• Patched version(s): 0.3.7

References

• GHSA-7px7-7xjx-hxm8
• lists.fedoraproject.org
• snyk.io
• CVE-2017-1000427
• CWE-79
• CAPEC-310
• OWASP 2021-A3
• OWASP 2021-A6

Related Issues

• rollbar vulnerable to prototype pollution - CVE-2025-57325
• Prebid.js NPM package briefly compromised - CVE-2025-59038
• devalue prototype pollution vulnerability - CVE-2025-57820
• js-toml Prototype Pollution Vulnerability - CVE-2025-54803

Tags:

npm

marked