CVE-2023-35172

HIGH

Nextcloud Server 21.0.0-21.0.9.12, 25.0.0-25.0.7 - Brute Force Attack via Password Reset Links

Title source: llm
STIX 2.1

Description

NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform. In NextCloud Server versions 25.0.0 until 25.0.7 and 26.0.0 until 26.0.2 and Nextcloud Enterprise Server versions 21.0.0 until 21.0.9.12, 22.0.0 until 22.2.10.12, 23.0.0 until 23.0.12.7, 24.0.0 until 24.0.12.2, 25.0.0 until 25.0.7, and 26.0.0 until 26.0.2, an attacker can bruteforce the password reset links. Nextcloud Server n 25.0.7 and 26.0.2 and Nextcloud Enterprise Server 21.0.9.12, 22.2.10.12, 23.0.12.7, 24.0.12.2, 25.0.7, and 26.0.2 contain a patch for this issue. No known workarounds are available.

References (3)

Core 3
Core References
Issue Tracking x_refsource_misc
https://github.com/nextcloud/server/pull/38267
Permissions Required x_refsource_misc
https://hackerone.com/reports/1987062

Scores

CVSS v3 8.7
EPSS 0.0062
EPSS Percentile 70.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-307
Status published
Products (2)
nextcloud/nextcloud_server 21.0.0 - 21.0.9.12
nextcloud/nextcloud_server 25.0.0 - 25.0.7
Published Jun 23, 2023
Tracked Since Feb 18, 2026