CVE-2023-33182 NONE

CVE-2023-33182: Nextcloud Contacts photos only sanitized if mime type is all lower case

Vendor Nextcloud
Product security-advisories
Weakness CWE-20 · Input validation
Published May 30, 2023
Last update January 10, 2025
View on NVD All CVEs

CVSS base score

0.0/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Contacts app for Nextcloud easily syncs contacts from various devices with your Nextcloud and allows editing. The unsanitized SVG is converted to a JavaScript blob (in memory data) that the Avatar can't render. Due to this constellation the missing sanitization does not seem to be exploitable. It is recommended that the Contacts app is upgraded to 5.0.3 or 4.2.4

Key dates

02Disclosure timeline

May 30, 2023 CVE published
January 10, 2025 Record updated