BaseFortify

Publication date: 2025-11-25

Last updated on: 2025-12-12

Assigner: GitHub, Inc.

Description

GeoServer is an open source server that allows users to share and edit geospatial data. From version 2.26.0 to before 2.26.2 and before 2.25.6, an XML External Entity (XXE) vulnerability was identified. The application accepts XML input through a specific endpoint /geoserver/wms operation GetMap. However, this input is not sufficiently sanitized or restricted, allowing an attacker to define external entities within the XML request. This issue has been patched in GeoServer 2.25.6, GeoServer 2.26.3, and GeoServer 2.27.0.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2025-11-25

Last Modified

2025-12-12

Generated

2026-07-06

AI Q&A

2025-11-25

EPSS Evaluated

2026-07-05

NVD

CVE-2025-58360

Affected Vendors & Products

Vendor	Product	Version / Range
geoserver	geoserver	to 2.25.6 (exc)
geoserver	geoserver	From 2.26.0 (inc) to 2.26.2 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-611	The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

Attack-Flow Graph

Executive Summary

This vulnerability is an XML External Entity (XXE) issue in GeoServer versions from 2.26.0 to before 2.26.2 and before 2.25.6. GeoServer accepts XML input through the /geoserver/wms GetMap operation endpoint. The XML input is not properly sanitized or restricted, which allows an attacker to define external entities within the XML request. This can lead to unintended processing of external resources.

Impact Analysis

The vulnerability can impact you by allowing an attacker to exploit the XXE flaw to access sensitive data or resources on the server, potentially leading to data disclosure. According to the CVSS score, it has a high impact on confidentiality (C:H) and a low impact on availability (A:L), meaning it can lead to significant data exposure without requiring user interaction or privileges.

Mitigation Strategies

To mitigate this vulnerability, immediately upgrade GeoServer to version 2.25.6, 2.26.3, 2.27.0 or later, as these versions contain the patch that fixes the XML External Entity (XXE) vulnerability.

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