How severe is GHSA-fjf5-xgmq-5525?

GHSA-fjf5-xgmq-5525 has a CVSS score of 8.2/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by GHSA-fjf5-xgmq-5525?

GHSA-fjf5-xgmq-5525 affects the following packages: org.geoserver.web:gs-web-app (Maven), org.geoserver:gs-wms (Maven), org.geoserver.web:gs-web-app (Maven), org.geoserver:gs-wms (Maven). Ecosystems affected: Maven.

How do I fix GHSA-fjf5-xgmq-5525?

Update org.geoserver.web:gs-web-app to version 2.26.2 or later. Run your dependency manager's update command and verify no transitive dependencies pin the vulnerable version. Use O3 Security's SCA scanner to confirm the fix is applied across your entire dependency tree.

Is GHSA-fjf5-xgmq-5525 actively exploited in the wild?

Yes. There are 1 known exploit references for GHSA-fjf5-xgmq-5525, including . All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for GHSA-fjf5-xgmq-5525?

GHSA-fjf5-xgmq-5525 has an EPSS (Exploit Prediction Scoring System) score of 81.4%, placing it in the 99th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is GHSA-fjf5-xgmq-5525 in the CISA Known Exploited Vulnerabilities catalog?

Yes. GHSA-fjf5-xgmq-5525 (OSGeo GeoServer Improper Restriction of XML External Entity Reference Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2025-12-11. CISA required all US federal civilian agencies to remediate this vulnerability by 2026-01-01. The required action was: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is GHSA-fjf5-xgmq-5525?

GHSA-fjf5-xgmq-5525 is classified as XML External Entity (XXE) (CWE-611). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Is there exploit tooling available for GHSA-fjf5-xgmq-5525?

A Nuclei detection template exists for GHSA-fjf5-xgmq-5525, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was GHSA-fjf5-xgmq-5525 published, and has it been updated?

GHSA-fjf5-xgmq-5525 was published on November 25, 2025 and was last updated on December 11, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2025-12-11 — agencies required to remediate by 2026-01-01

☕ Maven

GHSA-fjf5-xgmq-5525

HIGH

GeoServer is vulnerable to Unauthenticated XML External Entities (XXE) attack via WMS GetMap feature

Also known asCVE-2025-58360

Published

Nov 25, 2025

Updated

Dec 11, 2025

Affected

4 pkgs

Patched

4 / 4

Exploits

1 known

EPSS Exploitation Probability

via FIRST.org ↗

81.4%probability of exploitation in next 30 days

Very High Risk99th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

4 pkgs affected

☕org.geoserver.web:gs-web-app☕org.geoserver:gs-wms☕org.geoserver.web:gs-web-app☕org.geoserver:gs-wms

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

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.

An XML External Entity attack is a type of attack that occurs when XML input containing a reference to an external entity is processed by a weakly configured XML parser. This attack may lead to the disclosure of confidential data, denial of service, port scanning from the perspective of the machine where the parser is located, and other system impacts.

By exploiting this vulnerability, an attacker can:

Read arbitrary files from the server's file system.
Conduct Server-Side Request Forgery (SSRF) to interact with internal systems.
Execute Denial of Service (DoS) attacks by exhausting resources.

Resolution

Update to GeoServer 2.25.6, GeoServer 2.26.3, or GeoServer 2.27.0.

Impact

The XXE vulnerability can be used to retrieve arbitrary files from the server's file system.

Reference

https://osgeo-org.atlassian.net/browse/GEOS-11682
XBOW-024-081

Disclaimer

This vulnerability was detected using XBOW, a system that autonomously finds and exploits potential security vulnerabilities. The finding has been thoroughly reviewed and validated by a security researcher before submission. While XBOW is intended to work autonomously, during its development human experts ensure the accuracy and relevance of its reports.

Affected Packages

4 total 4 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.geoserver.web:gs-web-app`	≥ 2.26.0&&< 2.26.2	2.26.2
☕Maven	`org.geoserver:gs-wms`	≥ 2.26.0&&< 2.26.2	2.26.2
☕Maven	`org.geoserver.web:gs-web-app`	all versions	2.25.6
☕Maven	`org.geoserver:gs-wms`	all versions	2.25.6

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

quyenheu/CVE-2025-58360

XXE through a specific endpoint /geoserver/wms operation GetMap - Geoser

⭐ 6🍴 0May 2026

Frequently Asked Questions

## Description 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. An XML External Entity attack is a type of attack that occurs when XML input containing a reference to an external entity is processed by a weakly configured XML parser. This attack may lead to the disclosure of confidential data, denial of service, port scanning from the perspectiv

O3 Security · Impact-Aware SCA

Is GHSA-fjf5-xgmq-5525 in your stack?

O3 detects GHSA-fjf5-xgmq-5525 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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