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    4 vulnerabilities found for fast-xml-builder by NaturalIntelligence

    CVE-2026-44665 (GCVE-0-2026-44665)

    Vulnerability from nvd – Published: 2026-05-13 15:24 – Updated: 2026-05-18 15:04
    VLAI
    Title
    fast-xml-builder: Attribute values with unwanted quotes can bypass malicious or unwanted attributes
    Summary
    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.
    Severity
    6.1 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-91 - XML Injection (aka Blind XPath Injection)
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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    CVE-2026-44664 (GCVE-0-2026-44664)

    Vulnerability from nvd – Published: 2026-05-13 15:27 – Updated: 2026-05-13 16:46
    VLAI
    Title
    fast-xml-builder: Comment Value bypass regex
    Summary
    fast-xml-builder builds XML from JSON. In 1.1.5, the fix for CVE-2026-41650 in fast-xml-parser sanitizes -- sequences in XML comment content using .replace(/--/g, '- -'). This skip the values containing three consecutive dashes (e.g., --->...), allowing an attacker to break out of an XML comment and inject arbitrary XML/HTML content. This vulnerability is fixed in 1.1.6.
    Severity
    6.1 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-91 - XML Injection (aka Blind XPath Injection)
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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    CVE-2026-44664 (GCVE-0-2026-44664)

    Vulnerability from cvelistv5 – Published: 2026-05-13 15:27 – Updated: 2026-05-13 16:46
    VLAI
    Title
    fast-xml-builder: Comment Value bypass regex
    Summary
    fast-xml-builder builds XML from JSON. In 1.1.5, the fix for CVE-2026-41650 in fast-xml-parser sanitizes -- sequences in XML comment content using .replace(/--/g, '- -'). This skip the values containing three consecutive dashes (e.g., --->...), allowing an attacker to break out of an XML comment and inject arbitrary XML/HTML content. This vulnerability is fixed in 1.1.6.
    Severity
    6.1 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-91 - XML Injection (aka Blind XPath Injection)
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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    CVE-2026-44665 (GCVE-0-2026-44665)

    Vulnerability from cvelistv5 – Published: 2026-05-13 15:24 – Updated: 2026-05-18 15:04
    VLAI
    Title
    fast-xml-builder: Attribute values with unwanted quotes can bypass malicious or unwanted attributes
    Summary
    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.
    Severity
    6.1 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-91 - XML Injection (aka Blind XPath Injection)
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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