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.

• CWE-79
• CWE-79

• https://github.com/nextcloud/desktop/pull/5233Patch
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-64qc-vf6v-8xggVendor Advisory
• https://hackerone.com/reports/1788598Permissions Required, Third Party Advisory
• https://github.com/nextcloud/desktop/pull/5233Patch
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-64qc-vf6v-8xggVendor Advisory
• https://hackerone.com/reports/1788598Permissions Required, Third Party Advisory

Published

Feb 6, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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