Unrated

CVE-2021-3199

Type: advisorySource: Official CVE ListKnown exploited1 source record

Directory traversal with remote code execution can occur in /upload in ONLYOFFICE Document Server before 5.6.3, when JWT is used, via a /.. sequence in an image upload parameter.

Announced 22 Jan 2021Group revision 1

Original source ↗

CVE-2021-3199

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2021-3199

n/a

Source reference: /containers/cna/affected/0/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "n/a",
    "product": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]

Related CVEs: CVE-2021-3199
Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Linked CVE context

These ratings describe the referenced vulnerabilities and products. They are not a severity rating for every application using this dependency.

CVE-2021-3199 · Unrated

Docs · Known exploited (CISA KEV)

Event: #16169 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 01:12:27 GMT
Publisher date: Fri, 22 Jan 2021 02:41:34 GMT

Read the original announcement

Revision history

25 Oct 2026CVE-2021-3199 · Revision 1Source updated