Vulnerability in Nextcloud Desktop
CVE-2023-28998
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.
EPSS: 0.007 (48.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N.
Affected products
- Nextcloud Desktop
- Nextcloud Security-advisories — versions >= 3.0.0, < 3.6.5
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Vendor Advisory)
- security-advisories@github.com (Technical Description, Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2023-28998?
- CVE-2023-28998 is a medium-severity vulnerability in Nextcloud Desktop, classified under Missing Cryptographic Step. CVSS score: 6.7/10. Published 2023-04-04.
- How severe is CVE-2023-28998?
- Medium severity. CVSS v3 base score is 6.7 out of 10.