Description

GeoServer is an open source server that allows users to share and edit geospatial data. GeoTools Schema class use of Eclipse XSD library to represent schema data structure is vulnerable to XML External Entity (XXE) exploit. This impacts whoever exposes XML processing with gt-xsd-core involved in parsing, when the documents carry a reference to an external XML schema. The gt-xsd-core Schemas class is not using the EntityResolver provided by the ParserHandler (if any was configured). This also impacts users of gt-wfs-ng DataStore where the ENTITY_RESOLVER connection parameter was not being used as intended. This vulnerability is fixed in GeoTools 33.1, 32.3, 31.7, and 28.6.1, GeoServer 2.27.1, 2.26.3, and 2.25.7, and GeoNetwork 4.4.8 and 4.2.13.

Classification

CVE ID: CVE-2025-30220

CVSS Base Severity: CRITICAL

CVSS Base Score: 9.9

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L

Affected Products

Vendor: geoserver

Product: geoserver

Nuclei Template

http/cves/2025/CVE-2025-30220.yaml

Exploit Prediction Scoring System (EPSS)

EPSS Score: 4.3% (probability of being exploited)

EPSS Percentile: 88.34% (scored less or equal to compared to others)

EPSS Date: 2025-06-18 (when was this score calculated)

Stakeholder-Specific Vulnerability Categorization (SSVC)

SSVC Exploitation: none

SSVC Technical Impact: partial

SSVC Automatable: true

References

https://nvd.nist.gov/vuln/detail/CVE-2025-30220
https://github.com/geoserver/geoserver/security/advisories/GHSA-jj54-8f66-c5pc
https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-2p76-gc46-5fvc
https://github.com/geotools/geotools/security/advisories/GHSA-826p-4gcg-35vw
https://github.com/geonetwork/core-geonetwork/pull/8757
https://github.com/geonetwork/core-geonetwork/pull/8803
https://github.com/geonetwork/core-geonetwork/pull/8812
https://docs.geoserver.org/latest/en/user/production/config.html#production-config-external-entities

Timeline