CyberRota Analysis
AI-GeneratedThe vulnerability affects the @nuxtjs/mdc tool in Java, which improperly sanitizes untrusted Markdown content, allowing executable JavaScript URLs to bypass security measures through SVG and iframe elements. This flaw can lead to remote code execution, posing a significant risk to applications that utilize this tool for rendering Markdown. Developers and organizations using versions prior to 0.22.1 should prioritize upgrading to mitigate potential exploitation.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
MDC is a tool to take regular Markdown and write documents interacting deeply with a Vue component. Prior to 0.22.1, @nuxtjs/mdc uses parseMarkdown with allowDangerousHtml enabled by default and relies on validateProps, validateProp, and unsafeLinkPrefix to remove executable URLs from untrusted Markdown. validateProp checks only attributes named href or src, allowing an SVG xlink:href value represented as xLinkHref to retain a javascript: URL that executes in the page origin when selected. The data:text/html denylist entries are also compared against url.protocol, which is only data:, so an iframe src containing data:text/html survives sanitization and executes in an opaque origin when loaded. Plain href javascript: URLs, srcdoc, object, script, and base elements are already blocked, making these two paths specific sibling gaps in the sanitizer. This issue is fixed in version 0.22.1.