CyberRota Analysis
AI-GeneratedThe xmldom library in JavaScript versions 0.9.0-beta.1 to 0.9.12 is vulnerable to a denial-of-service attack due to improper handling of mixed-case closing tags in HTML-mode parsing, which can lead to excessive CPU and memory consumption when processing untrusted documents. This vulnerability poses a high risk for applications utilizing these versions of xmldom, particularly those that parse user-generated HTML content. Developers and organizations using affected versions should prioritize upgrading to version 0.9.12 or later to mitigate this risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. From 0.9.0-beta.1 until 0.9.12, HTML-mode parsing through DOMParser.parseFromString() mishandles a mixed-case closing tag for the script, style, textarea, or title raw-text elements. parseHtmlSpecialContent, selected by isHTMLRawTextElement or isHTMLEscapableRawTextElement, uses a case-sensitive indexOf() and then calls substring() with a missing-close result of negative one, causing unstable parser progression and quadratic output amplification. A small untrusted text/html document can consequently consume disproportionate CPU and memory when parsed and serialized. This issue is fixed in @xmldom/xmldom version 0.9.12.