CVE-2023-28999
Medium
Description
Nextcloud is an open-source productivity platform. In Nextcloud Desktop client 3.0.0 until 3.8.0, Nextcloud Android app 3.13.0 until 3.25.0, and Nextcloud iOS app 3.0.5 until 4.8.0, 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. This issue is fixed in Nextcloud Desktop 3.8.0, Nextcloud Android 3.25.0, and Nextcloud iOS 4.8.0. No known workarounds are available.
SeverityMedium
CVSS6.9
Exploit probability—
Product
Nextcloud Desktop
PublishedApr 4, 2023
First seenApr 4, 2023
Weakness typeCWE-325CWE-325
How to fix
Update
- nextcloud desktop3.8.0 or later
- nextcloud nextcloud4.8.0, 3.25.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| nextcloud desktop | 3.0.0 ≤ v < 3.8.0 | 3.8.0 |
| nextcloud nextcloud | 3.0.5 ≤ v < 4.8.0, 3.13.0 ≤ v < 3.25.0 | 4.8.0, 3.25.0 |
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