CVE-2026-6620 json
SonicCloudOrg sonic-server File Upload Endpoint FileTool.java upload path traversal
published 2026-04-20 6 mo ago modified 2026-10-26 13 d ago also EUVD-2026-23811
- cvss
- 6.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 28%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 6 mo ago
Exploit prediction
0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/ccccccctiiiiiiii-lab/public_exp/issues/2 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P |
| CNA | 3.1 | 6.3 | 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 |
| CNA | 3.0 | 6.3 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R |
| CNA | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR |
| CNA | 4.0 | 2.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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 |
| CNA | 3.1 | 6.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
| CNA | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Affected products
- SonicCloudOrg sonic-server
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
github.com
/ccccccctiiiiiiii-lab/public_exp/issues/2
exploit, issue-tracking
-
vuldb.com
/vuln/358255
vdb-entry, technical-description
-
vuldb.com
/vuln/358255/cti
signature, permissions-required
-
vuldb.com
/submit/792336
third-party-advisory
Sources
- CVE List CVE-2026-6620
- NVD CVE-2026-6620
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.