CVE-2025-27505

MEDIUMNuclei

GeoServer Missing Authorization on REST API Index

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2025-27505 has a selected CVSS score of 5.3 (medium); EIP currently links 1 Nuclei template.

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.

Description source: CVE List

Exploitation context

Known exploitation

VulnCheck KEV
Listed · Jul 21, 2025 · VulnCheck
Reported exploitation
Observed · VulnCheck

Available material

Nuclei templates
1

CISA SSVC decision

ExploitationNone
AutomatableYes
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Jun 10, 2025 · Source: CVE List

Affected products and versions

4
ProductSourceVersion range

GeoServer

Browse OSGeo / GeoServer
VulnCheckVersion data not supplied

geoserver

Browse geoserver / geoserver
CVE List>= 2.26.0, < 2.26.3affected
< 2.25.6affected

org.geoserver.web:gs-web-app

Browse Maven / org.geoserver.web:gs-web-app
GitHub Advisory2.26.0 to < 2.26.3 · Fixed in 2.26.3affected
Before 2.25.6 · Fixed in 2.25.6affected

org.geoserver:gs-rest

Browse Maven / org.geoserver:gs-rest
GitHub Advisory2.26.0 to < 2.26.3 · Fixed in 2.26.3affected
Before 2.25.6 · Fixed in 2.25.6affected

Nuclei templates

1
ProjectDiscoveryMEDIUMGeoServer - Missing Authorization on REST API IndexCVSS 5.3

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

Impact

Unauthenticated users can access the GeoServer REST API Index page, potentially exposing sensitive configuration information and available API endpoints.

Remediation

Upgrade to the latest GeoServer version that implements proper authorization checks for the REST API Index page.

WeaknessesCWE-862
Authorssecuritytaters
Template tagscvecve2025geoservermisconfigosgeovkevvuln
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CPE: cpe:2.3:a:geoserver:geoserver:*:*:*:*:*:*:*:*
Shodan: http.title:"geoserver"
FOFA: app="geoserver"
http://geoserver.org/ https://geoserver.org/vulnerability/2025/06/10/cve-disclosure.html https://nvd.nist.gov/vuln/detail/CVE-2025-27505

Source: ProjectDiscovery

References

6