Server-Side Request Forgery (SSRF) in geoserver - CVE-2023-43795
Published: October 24, 2023 / Updated: May 5, 2026
Vulnerability identifier: #VU129758
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2023-43795
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: geoserver
Affected software:
geoserver
geoserver
Detailed vulnerability description
The vulnerability allows a remote attacker to perform server-side request forgery.
The vulnerability exists due to improper access control in the OGC Web Processing Service (WPS) Execute operation when processing complex remote inputs from external URL references. A remote attacker can submit a crafted request referencing an external URL to perform server-side request forgery.
Exploitation requires the WPS extension to be installed, the "Disable complex inputs" setting to be unselected, and security URL checks to be disabled.
How to mitigate CVE-2023-43795
Install security update from vendor's website.