CVE-2024-52807: XXE vulnerability in XSLT parsing in `org.hl7.fhir.publisher`
Description
The HL7 FHIR IG publisher is a tool to take a set of inputs and create a standard FHIR IG. Prior to version 1.7.4, 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. This issue has been patched as of version 1.7.4. No known workarounds are available.
Classification
CVE ID: CVE-2024-52807
CVSS Base Severity: HIGH
CVSS Base Score: 8.6
Affected Products
Vendor: HL7
Product: fhir-ig-publisher
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.04% (probability of being exploited)
EPSS Percentile: 11.72% (scored less or equal to compared to others)
EPSS Date: 2025-02-21 (when was this score calculated)
References
https://github.com/HL7/fhir-ig-publisher/security/advisories/GHSA-8c3x-hq82-gjcmhttps://github.com/HL7/fhir-ig-publisher/compare/1.7.3...1.7.4