CVE-2025-27505 PoC — GeoServer Missing Authorization on REST API Index

Title:GeoServer Missing Authorization on REST API Index (CVE-2025-27505)
Description:GeoServer is an open source server that allows users to share and edit geospatial data. It is possible to bypass the default REST API security and access the index page. The REST API security handles rest and its subpaths but not rest with an extension (e.g., rest.html). The REST API index can disclose whether certain extensions are installed. This vulnerability is fixed in 2.26.3 and 2.25.6. As a workaround, in ${GEOSERVER_DATA_DIR}/security/config.xml, change the paths for the rest filter to /rest.*,/rest/** and change the paths for the gwc filter to /gwc/rest.*,/gwc/rest/** and restart GeoServer.

GeoServer contains a missing authorization vulnerability that allows unauthorized access to the REST API Index page, potentially exposing sensitive configuration information.

 id: CVE-2025-27505

info:
  name: GeoServer - Missing Authorization on REST API Index
  author: secu

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