Vulnerability · Published Apr 20, 2026 · Assigned by VulDB

CVE-2026-6620SonicCloudOrg sonic-server File Upload Endpoint FileTool.java upload path traversal

Medium 6.3

In plain English

A medium-severity path traversal in sonic-server from SonicCloudOrg. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)0.3%top 71.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
SonicCloudOrg	sonic-server	2.0

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References

VDB-358255 | SonicCloudOrg sonic-server File Upload Endpoint FileTool.java upload path traversal vdb-entry, technical-description
VDB-358255 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #792336 | SonicCloudOrg sonic-server 2.0.0 Injection third-party-advisory
https://github.com/ccccccctiiiiiiii-lab/public_exp/issues/2 exploit, issue-tracking