What is CVE-2023-23942?

CVE-2023-23942 is a medium-severity vulnerability in Nextcloud Desktop, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-02-06.

How severe is CVE-2023-23942?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Nextcloud Desktop

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`…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (46.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Nextcloud Desktop
Nextcloud Security-advisories — versions < 3.6.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)
security-advisories@github.com (Permissions Required, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2023-23942?: CVE-2023-23942 is a medium-severity vulnerability in Nextcloud Desktop, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-02-06.
How severe is CVE-2023-23942?: Medium severity. CVSS v3 base score is 5.4 out of 10.