Vulnerability Details : CVE-2023-23942
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.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2023-23942
- cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-23942
0.81%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 73 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-23942
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST | |
|
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
GitHub, Inc. |
CWE ids for CVE-2023-23942
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2023-23942
-
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-64qc-vf6v-8xgg
Self reflected HTML injection in Desktop client · Advisory · nextcloud/security-advisories · GitHubVendor Advisory
-
https://github.com/nextcloud/desktop/pull/5233
Make use of plain text-enforcing qml labels by claucambra · Pull Request #5233 · nextcloud/desktop · GitHubPatch
-
https://hackerone.com/reports/1788598
HackerOnePermissions Required;Third Party Advisory
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