Medium severity · published May 26, 2023
CVE-2023-32318
Nextcloud server provides a home for data
6.7
CVSS
0.2%
EPSS
No
On KEV
Description
Nextcloud server provides a home for data. A regression in the session handling between Nextcloud Server and the Nextcloud Text app prevented a correct destruction of the session on logout if cookies were not cleared manually. After successfully authenticating with any other account the previous session would be continued and the attacker would be authenticated as the previously logged in user. It is recommended that the Nextcloud Server is upgraded to 25.0.6 or 26.0.1.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nextcloud Server · Nextcloud
25.0.2 before 25.0.6; 25.0.2 before 25.0.6; 26.0.0; 26.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-32318
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-32318
Vendor Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-q8c4-chpj-6v38
Patch
https://github.com/nextcloud/text/pull/3946
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