CVEvulnerability

CVE-2023-25818

7.1 HIGH Published 2023-03-27 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-03-27
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 3.1 ([email protected])
7.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Weaknesses
CWE-307

Description

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.

Affected configurations

• nextcloud nextcloud server (>= 21.0.0 < 21.0.9.10) • nextcloud nextcloud server (>= 22.0.0 < 22.2.10.10) • nextcloud nextcloud server (>= 23.0.0 < 23.0.12.5) • nextcloud nextcloud server (>= 24.0.0 < 24.0.10) • nextcloud nextcloud server (>= 25.0.0 < 25.0.4)

Related

Weakness · CWE (1)

  • CWE-307 Improper Restriction of Excessive Authentication Attempts weakness

References