CVE-2023-28643 MEDIUM

CVE-2023-28643: Potential share collision for recipients when caching is enabled in nextcloud server

Vendor Nextcloud
Product security-advisories
Weakness CWE-706
Published March 30, 2023
Last update February 11, 2025
View on NVD All CVEs

CVSS base score

5.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Nextcloud server is an open source home cloud implementation. In affected versions when a recipient receives 2 shares with the same name, while a memory cache is configured, the second share will replace the first one instead of being renamed to `{name} (2)`. It is recommended that the Nextcloud Server is upgraded to 25.0.3 or 24.0.9. Users unable to upgrade should avoid sharing 2 folders with the same name to the same user.

Key dates

02Disclosure timeline

March 30, 2023 CVE published
February 11, 2025 Record updated