CVE-2023-28833

CWE-22 — Path TraversalCWE-434 — Unrestricted File Upload2 documents2 sources
Severity
8.8HIGH
EPSS
0.6%
top 29.75%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Nextcloud Security-advisoriesNextcloud Nextcloud Server
Timeline
PublishedMar 30

Description

Nextcloud server is an open source home cloud implementation. In affected versions admins of a server were able to upload a logo or a favicon and to provided a file name which was not restricted and could overwrite files in the appdata directory. Administrators may have access to overwrite these files by other means but this method could be exploited by tricking an admin into uploading a maliciously named file. It is recommended that the Nextcloud Server is upgraded to 24.0.10 or 25.0.4. Users u…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:LExploitability: 0.9 | Impact: 1.4

Affected Packages2 packages

▶NVDnextcloud/nextcloud_server23.0.0 — 23.0.14+2
▶CVEListV5nextcloud/security-advisories< 24.0.10+1

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

1
CVEList
Unrestricted filenames for logo or favicon as admin in the theming settings in nextcloud server↗2023-03-30
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CVE-2023-28833 (HIGH CVSS 8.8) | Nextcloud server is an open source | cvebase.io