CVE-2023-39955 LOW

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

Vendor Nextcloud
Product security-advisories
Weakness CWE-79 · XSS
Published August 10, 2023
Last update October 4, 2024

CVSS base score

3.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 10, 2023 CVE published
October 4, 2024 Record updated