CVE-2023-25818 MEDIUM

CVE-2023-25818: Missing brute force protection on password reset token in Nextcloud Server

Vendor Nextcloud
Product security-advisories
Weakness CWE-307 · Brute force
Published March 27, 2023
Last update February 19, 2025
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Nextcloud server is an open source, personal cloud implementation. In affected versions a malicious user could try to reset the password of another user and then brute force the 62^21 combinations for the password reset token. As of commit `704eb3aa` password reset attempts are now throttled. Note that 62^21 combinations would significant compute resources to brute force. None the less it is recommended that the Nextcloud Server is upgraded to 24.0.10 or 25.0.4. There are no known workarounds for this vulnerability.

Key dates

02Disclosure timeline

March 27, 2023 CVE published
February 19, 2025 Record updated