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TI-2023-28099 Aliases CVE-2023-51445GHSA-fh7p-5f6g-vj2w

GeoServer Stored Cross-Site Scripting (XSS) vulnerability in REST Resources API

Priority MEDIUM 55CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

GeoServer is an open source software server written in Java that allows users to share and edit geospatial data. A stored cross-site scripting (XSS) vulnerability exists in versions prior to 2.23.3 and 2.24.0 that enables an authenticated administrator with workspace-level privileges to store a JavaScript payload in uploaded style/legend resources that will execute in the context of another administrator's browser when viewed in the REST Resources API. Access to the REST Resources API is limited to full administrators by default and granting non-administrators access to this endpoint should be carefully considered as it may allow access to files containing sensitive information. Versions 2.23.3 and 2.24.0 contain a patch for this issue.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00487 42nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed geoserver (geoserver): 2.23.3org.geoserver:gs-restconfig (Maven): 2.23.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
geoservergeoserverbefore 2.23.32.23.3Patch availableCNA
—org.geoserver:gs-restconfig (Maven)before 2.23.32.23.3Patch availableGHSA-fh7p-5f6g-vj2w
  • geoserver Vendorgeoserver Affected before 2.23.3 Fixed in 2.23.3 Patch available CNA
  • org.geoserver:gs-restconfig (Maven) Vendor— Affected before 2.23.3 Fixed in 2.23.3 Patch available GHSA-fh7p-5f6g-vj2w

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:geoserver:geoserver:*:*:*:*:*:*:*:*before 2.23.3Vulnerablegeoserver
  • cpe:2.3:a:geoserver:geoserver:*:*:*:*:*:*:*:* Versions before 2.23.3 Vulnerable ·geoserver

Remediation

  • Fix · CNA geoserver (geoserver) Fixed in 2.23.3
  • Fix · GHSA-fh7p-5f6g-vj2w org.geoserver:gs-restconfig (Maven) Fixed in 2.23.3 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-51445
  2. 2026-10-03 Alias added: GHSA-fh7p-5f6g-vj2w

References

Exploit 1

Patch 1

Advisory 1

Other 3

  • TI-2024-24187 Remote Code Execution (RCE) vulnerability in evaluating property name expressions in Geoserver KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-36149 GeoServer is vulnerable to an Unauthenticated XML External Entities (XXE) attack via WMS GetMap feature KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-17518 GeoServer 2, in some configurations, allows remote attackers to execute arbitrary code… CVSS 3.1CRITICAL 9.8
  • TI-2023-28098 GeoServer arbitrary file upload vulnerability in REST Coverage Store API CVSS 3.1HIGH 7.2
  • TI-2024-15662 GeoServer Stored Cross-Site Scripting (XSS) vulnerability in GWC Seed Form CVSS 3.1MEDIUM 4.8
  • TI-2024-16266 Classpath resource disclosure in GWC Web Resource API on Windows / Tomcat CVSS 3.1HIGH 7.5
See all 16 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences