CyberRota Analysis
AI-GeneratedThe vulnerability affects the xmldom library, specifically versions prior to 0.8.15 and 0.9.12, where the DOMParser.parseFromString() method can incorrectly handle malformed end tags, potentially leading to a bypass of well-formedness checks. This could allow attackers to manipulate XML content without triggering error handling mechanisms, posing a risk to applications relying on this library for XML parsing. Developers and organizations using affected versions of xmldom should prioritize updating to the fixed versions to mitigate potential security risks.
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. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and in xmldom version 0.6.0 and earlier, DOMParser.parseFromString() can silently accept an end tag such as </a\njunk>, close the element, and discard the trailing content. On 0.9.x, the lib/sax.js end-tag validator inherits the multiline flag from reg(), allowing the first line to satisfy the anchored XML ETag production; older lines have no equivalent residue validation. This parser differential can bypass a parse-before-trust well-formedness gate, although it does not inject the discarded content; onError on 0.9.x and errorHandler on 0.8.x are the relevant reporting interfaces. This issue is fixed in @xmldom/xmldom versions 0.8.15 and 0.9.12; no fixed version is available for xmldom.