XXE vulnerability in XSLT parsing in `org.hl7.fhir.publisher`
Date: 2025-01
Affected: maven/org.hl7.fhir.publisher:org.hl7.fhir.publisher.core, maven/org.hl7.fhir.publisher:org.hl7.fhir.publisher.cli
Attack vector: other
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2024-45294
CVE-2024-52007
CVE-2024-52807
CWE: CWE-611
CVSS: 8.6 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N)

### Impact XSLT transforms performed by various components are vulnerable to XML external entity injections. A processed XML file with a malicious DTD tag ( ]> could produce XML containing data from the host system. This impacts use cases where org.hl7.fhir.publisher is being used to within a host where external clients can submit XML. A previous release provided an incomplete solution revealed by new testing. ### Patches This issue has been patched as of version 1.7.4 ### Workarounds None ### References [Previous Advisory for Incomplete solution](https://github.com/HL7/fhir-ig-publisher/security/advisories/GHSA-59rq-22fm-x8q5) [MITRE CWE](https://cwe.mitre.org/data/definitions/611.html) [OWASP XML External Entity Prevention Cheat Sheet](https://cheatsheetseries.owasp.org/cheatsheets/XML_External_Entity_Prevention_Cheat_Sheet.html#transformerfactory)


Mitigations:

Architectural layers (MAESTRO):