CVE-2022-50899

Geonetwork 4.2.0 - XML External Entity (XXE)

HIGH 8.7EPSS 0.6%

Geonetwork 3.10 through 4.2.0 contains an XML external entity vulnerability in PDF rendering that allows attackers to retrieve arbitrary files from the server. Attackers can exploit the insecure XML parser by crafting a malicious XML document with external entity references to read system files through the baseURL parameter in PDF creation requests.

Affected: GeoNetwork
CVSS v4.0 VULNCHECK: 8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 VULNCHECK: 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.55% chance of exploitation in the next 30 days, 45th percentile
Published: 2026-01-13
Updated: 2026-05-14

Proof-of-concept exploits (1)

https://www.exploit-db.com/exploits/50982

Security advisories

https://www.vulncheck.com/advisories/geonetwork-xml-external-entity-xxe
https://geonetwork-opensource.org

References

CVE Record
NVD entry