CVE-2026-47079

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Source

https://cve.org/CVERecord?id=CVE-2026-47079

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47079.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-47079

Aliases

EEF-CVE-2026-47079
GHSA-5hjx-8g53-cmvm

Published

2026-08-21T09:52:44Z

Modified

2026-08-27T11:31:14Z

Severity

2.1 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N CVSS Calculator

Summary

Round-trip Corruption via Improper Entity Escaping in xml_builder

Details

Inappropriate Encoding for Output Context vulnerability in joshnuss xml_builder (XmlBuilder module) allows Content Spoofing, Cross-site Scripting.

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

XmlBuilder.generate/1 does not escape literal & characters in text or attribute values when they are followed by an entity-like token (lt;, gt;, amp;, quot;, apos;). As a result, attacker-supplied input such as <script> is emitted verbatim into the serialized XML rather than being escaped to <script>. When a downstream XML parser later reads the document, it decodes the entity sequences into the literal characters

Database specific

{
    "cna_assigner": "EEF",
    "cwe_ids": [
        "CWE-838"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47079.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "0.0.6"
                },
                {
                    "fixed": "2.4.1"
                },
                {
                    "introduced": "aae31e6e8ac837bcbb8afb816c0d14324b5cfe2b"
                },
                {
                    "fixed": "c3390e2046ec297b3bb8c30d5779cdfd6508c275"
                }
            ],
            "source": "AFFECTED_FIELD"
        },
        {
            "extracted_events": [
                {
                    "introduced": "0.0.6"
                },
                {
                    "fixed": "2.4.1"
                }
            ],
            "source": "CPE_FIELD"
        },
        {
            "extracted_events": [
                {
                    "introduced": "0.0.6"
                },
                {
                    "fixed": "2.4.1"
                }
            ],
            "source": "DESCRIPTION"
        }
    ]
}

References

Affected packages

Git / github.com/joshnuss/xml_builder

Affected ranges

Type

GIT

Repo

https://github.com/joshnuss/xml_builder

Events

Introduced

Fixed

c3390e2046ec297b3bb8c30d5779cdfd6508c275

Database specific

Show details

{
    "source": "REFERENCES"
}

Affected versions

v0.*

v0.0.6

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47079.json"