XXE in Geonetwork
CVE-2022-50899
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.
Vulnerability class: XXE (XML External Entity)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (43.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.001
Affected products
- Geonetwork — versions 3.10
- Osgeo Geonetwork
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/50982 (Exploit, VDB Entry, exploit)
- geonetwork-opensource.org/ (Product, product)
- www.vulncheck.com/advisories/geonetwork-xml-external-entity-xxe (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2022-50899?
- CVE-2022-50899 is a medium-severity vulnerability in Geonetwork, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2026-01-13.
- How severe is CVE-2022-50899?
- Medium severity. CVSS v3 base score is 6.5 out of 10.