CVE-2024-23818: geoserver XSS — Fix

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 2.24.1 that enables an authenticated administrator with workspace-level privileges to store a JavaScript payload in the GeoServer catalog that will execute in the context of another user's browser when viewed in the WMS GetMap OpenLayers Output Format. Access to the WMS OpenLayers Format is available to all users by default although data and service security may limit users' ability to trigger the XSS. Versions 2.23.3 and 2.24.1 contain a patch for this issue.

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CVSS v3.1 Score

4.8

MEDIUM

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

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
geoserver	geoserver	< 2.23.3
geoserver	geoserver	All

References

Advisories & Patches

https://github.com/geoserver/geoserver/commit/4557a832eed19ec18b9753cb97e8aa85269741d2 https://github.com/geoserver/geoserver/commit/a26c32a469ee4c599236380452ffb4260361bd6f https://github.com/geoserver/geoserver/security/advisories/GHSA-fcpm-hchj-mh72 https://github.com/geoserver/geoserver/commit/4557a832eed19ec18b9753cb97e8aa85269741d2 https://github.com/geoserver/geoserver/commit/a26c32a469ee4c599236380452ffb4260361bd6f https://github.com/geoserver/geoserver/security/advisories/GHSA-fcpm-hchj-mh72

Other References

https://github.com/geoserver/geoserver/pull/7174 https://osgeo-org.atlassian.net/browse/GEOS-11153 https://github.com/geoserver/geoserver/pull/7174 https://osgeo-org.atlassian.net/browse/GEOS-11153

Frequently Asked Questions

What is CVE-2024-23818? +

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 2.24.1 that enables an authenticated administrator with workspace-level privileges to store a JavaScript payload in the GeoServer catalog that will execute in the context of another user's browser when viewed in the WMS GetMap OpenLayers Output Format. Access to the WMS OpenLayers Format is available to all users by default although data and service security may limit users' ability to trigger the XSS. Versions 2.23.3 and 2.24.1 contain a patch for this issue. It has a CVSS v3.1 base score of 4.8 (MEDIUM).

How severe is CVE-2024-23818? +

CVE-2024-23818 has a CVSS v3.1 score of 4.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-23818? +

CVE-2024-23818 affects products from geoserver, specifically: geoserver. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-23818? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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