{"cve":"CVE-2023-41339","nvd":{"published":"2023-10-25T18:17:30.840","modified":"2026-06-17T06:21:52.097","status":"Modified","description":"GeoServer is an open source software server written in Java that allows users to share and edit geospatial data. The WMS specification defines an ``sld=<url>`` parameter for GetMap, GetLegendGraphic and GetFeatureInfo operations for user supplied \"dynamic styling\".  Enabling the use of dynamic styles, without also configuring URL checks, provides the opportunity for Service Side Request Forgery. This vulnerability can be used to steal user NetNTLMv2 hashes which could be relayed or cracked externally to gain further access. This vulnerability has been patched in versions 2.22.5 and 2.23.2.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":["CWE-918"],"references":["https://github.com/geoserver/geoserver/releases/tag/2.22.5","https://github.com/geoserver/geoserver/releases/tag/2.23.2","https://github.com/geoserver/geoserver/security/advisories/GHSA-cqpc-x2c6-2gmf","https://github.com/geoserver/geoserver/releases/tag/2.22.5","https://github.com/geoserver/geoserver/releases/tag/2.23.2"],"products":["osgeo:geoserver"],"source":"nvd","synced_at":"2026-10-19T21:40:11.519948003+00:00"},"epss":{"cve":"CVE-2023-41339","score":0.00632,"percentile":0.50333,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-cqpc-x2c6-2gmf","url":"https://osv.dev/vulnerability/GHSA-cqpc-x2c6-2gmf","summary":"Unsecured WMS dynamic styling sld=<url> parameter affords blind unauthenticated SSRF","modified":"2024-03-06T23:57:16Z","packages":[{"ecosystem":"Maven","name":"org.geoserver:gs-wms","purl":"pkg:maven/org.geoserver/gs-wms","ranges":["<2.22.5"],"fixed":["2.22.5"]},{"ecosystem":"Maven","name":"org.geoserver:gs-wms","purl":"pkg:maven/org.geoserver/gs-wms","ranges":[">=2.23.0 <2.23.2"],"fixed":["2.23.2"]},{"ecosystem":"Maven","name":"org.geoserver.web:gs-web-app","purl":"pkg:maven/org.geoserver.web/gs-web-app","ranges":["<2.22.5"],"fixed":["2.22.5"]},{"ecosystem":"Maven","name":"org.geoserver.web:gs-web-app","purl":"pkg:maven/org.geoserver.web/gs-web-app","ranges":[">=2.23.0 <2.23.2"],"fixed":["2.23.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}