Path Traversal in Soniccloudorg Sonic-Server
CVE-2026-6620
A vulnerability was found in SonicCloudOrg sonic-server up to 2.0.0. The affected element is the function Upload of the file FileTool.java of the component File Upload Endpoint. The manipulation of the argument Type results in path traversal. The attack may be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.003 (27.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Soniccloudorg Sonic-server — versions 2.0
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, vdb-entry)
- cna@vuldb.com (signature, permissions-required)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (issue-tracking, exploit)
Frequently asked questions
- What is CVE-2026-6620?
- CVE-2026-6620 is a medium-severity vulnerability in Soniccloudorg Sonic-Server, classified under Path Traversal. CVSS score: 6.3/10. Published 2026-04-20.
- How severe is CVE-2026-6620?
- Medium severity. CVSS v3 base score is 6.3 out of 10.