CVE-2023-39955 Notes attachment render HTML in preview mode

2023-08-1014:53:42

CWE-79

GitHub_M

www.cve.org

cve-2023-39955

notes app

nextcloud

html rendering

vulnerability

patch

CVSS3

3.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

EPSS

0.001

Percentile

23.8%

JSON

Notes is a note-taking app for Nextcloud, an open-source cloud platform. Starting in version 4.4.0 and prior to version 4.8.0, when creating a note file with HTML, the content is rendered in the preview instead of the file being offered to download. Nextcloud Notes app version 4.8.0 contains a patch for the issue. No known workarounds are available.

CNA Affected

[
  {
    "vendor": "nextcloud",
    "product": "security-advisories",
    "versions": [
      {
        "version": ">= 4.4.0, < 4.8.0",
        "status": "affected"
      }
    ]
  }
]