CVE-2026-48590

Summary

XML Injection vulnerability in joshnuss xml_builder (XmlBuilder module) allows Content Spoofing, XML Injection.

This vulnerability is associated with program files lib/xml_builder.ex and program routines XmlBuilder.generate/1, XmlBuilder.generate/2, XmlBuilder.element/1, XmlBuilder.element/2, XmlBuilder.element/3.

Element names, attribute names, and doctype identifiers are interpolated verbatim into the serialized XML output without validation or escaping of structural characters (<, >, ", ', &). An attacker who can influence a name argument (for example, an element name derived from a JSON object key or an HTTP form field name) can inject arbitrary XML markup including extra elements, comments, and event-handler attributes into the output document.

This issue affects xml_builder: from 0.0.1 before 2.4.1.

Affected Software

VendorProductVersion RangeStatus
joshnussxml_builder0.0.1 < 2.4.1affected
joshnussxml_builder9fb49131ad3ee146a4c9db9bc175bdffe32e30a0 < d5c0aec32a8eecbb440fb9bbb0f59d4d188d5859affected

Weaknesses

  • CWE-91: CWE-91 XML Injection (aka Blind XPath Injection)

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: partial

Additional References

References