CVE-2023-28998

PoC —

CVSS 3.1

6.1 medium

EPSS

<1%p50

Published

Apr 4, 2023 (Apr 4, 2023)

Modified

Jun 17, 2026

Description

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.6.5, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files, recover the folder structure, and add new files. Users should upgrade the Nextcloud Desktop client to 3.6.5 to receive a patch. No known workarounds are available.

Vendors: nextcloud
Products: desktop
Weakness: CWE-325
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (0.7%)

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