Nuxt MDC has an XSS vulnerability in markdown rendering that bypasses HTML filtering

Description

A remote script-inclusion / stored XSS vulnerability in @nuxtjs/mdc lets a Markdown author inject a <base href="https://attacker.tld"> element.

Recommendation

Update the @nuxtjs/mdc package to the latest compatible version. Followings are version details:

• Affected version(s): < 0.17.2
• Patched version(s): 0.17.2

References

• GHSA-cj6r-rrr9-fg82
• CVE-2025-54075
• CWE-79
• CAPEC-310
• OWASP 2021-A3
• OWASP 2021-A6

Related Issues

• Parsed HTML anchor links in Markdown provided to parseMarkdown can result in XSS in @nuxtjs/mdc - CVE-2025-24981
• Jodit has cross-site scripting (XSS) via <script> nested in SVG that bypasses clean-html sanitization - CVE-2026-65841
• XSS/HTML Injection Vulnerability in Umbraco Backoffice Components - CVE-2025-24012
• Vuetify has a Cross-site Scripting (XSS) vulnerability in the VDatePicker component - CVE-2025-8082

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Tags:

npm

@nuxtjs/mdc