CVE-2023-25579
Medium
Description
Nextcloud server is a self hosted home cloud product. In affected versions the `OC\Files\Node\Folder::getFullPath()` function was validating and normalizing the string in the wrong order. The function is used in the `newFile()` and `newFolder()` items, which may allow to creation of paths outside of ones own space and overwriting data from other users with crafted paths. This issue has been addressed in versions 25.0.2, 24.0.8, and 23.0.12. Users are advised to upgrade. There are no known workarounds for this issue.
SeverityMedium
CVSS6.0
Exploit probability—
Product
Nextcloud Server
PublishedFeb 22, 2023
First seenFeb 22, 2023
Weakness typeCWE-22Path traversal
How to fix
Update
- nextcloud nextcloud_server23.0.12, 20.0.14, 21.0.9, 22.2.10, 24.0.8, 25.0.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| nextcloud nextcloud_server | v < 23.0.12, 20.0.0 ≤ v < 20.0.14, 21.0.0 ≤ v < 21.0.9, 22.2.0 ≤ v < 22.2.10, 23.0.0 ≤ v < 23.0.12, 24.0.0 ≤ v < 24.0.8, 25.0.0 ≤ v < 25.0.2 | 23.0.12, 20.0.14, 21.0.9, 22.2.10, 24.0.8, 25.0.2 |
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