CVE-2026-44665
fast-xml-builder: Attribute values with unwanted quotes can bypass malicious or unwanted attributes
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
fast-xml-builder builds XML from JSON. Prior to 1.1.7, when an input data has quotes in attribute values but process entities is not enabled, it breaks the attribute value into multiple attributes. This gives the room for an attacker to insert unwanted attributes to the XML/HTML. This vulnerability is fixed in 1.1.7.
| CWE | CWE-91 |
| Vendor | naturalintelligence |
| Product | fast-xml-builder |
| Published | May 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
NaturalIntelligence / fast-xml-builder
< 1.1.7