Critical severity · published Jun 23, 2023
CVE-2023-35172
NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform
9.1
CVSS
0.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nextcloud Server · Nextcloud
21.0.0 before 21.0.9.12; 22.0.0 before 22.2.10.12; 23.0.0 before 23.0.12.7; 24.0.0 before 24.0.12.2; 25.0.0 before 25.0.7; 25.0.0 before 25.0.7; +2 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-35172
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-35172
Vendor Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-mjf5-p765-qmr6
Issue Tracking
https://github.com/nextcloud/server/pull/38267
Permissions Required
https://hackerone.com/reports/1987062
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