Medium severity · published Feb 6, 2023
CVE-2023-23942
The Nextcloud Desktop Client is a tool to synchronize files from a Nextcloud Server with your computer
6.1
CVSS
0.7%
EPSS
No
On KEV
Description
The Nextcloud Desktop Client is a tool to synchronize files from a Nextcloud Server with your computer. Versions prior to 3.6.3 are missing sanitisation on qml labels which are used for basic HTML elements such as `strong`, `em` and `head` lines in the UI of the desktop client. The lack of sanitisation may allow for javascript injection. It is recommended that the Nextcloud Desktop Client is upgraded to 3.6.3. There are no known workarounds for this issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DE
Desktop · Nextcloud
before 3.6.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-23942
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-23942
Patch
https://github.com/nextcloud/desktop/pull/5233
Vendor Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-64qc-vf6v-8xgg
Permissions Required
https://hackerone.com/reports/1788598
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