Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2023-28833

2.4 · LOW

Nextcloud server is an open source home cloud implementation.

Published Mar 30, 2023CWE-22EPSS 0.76%

Overview

CVE-2023-28833 is a low-severity vulnerability. It was published on March 30, 2023 and has a CVSS 3.1 base score of 2.4 (LOW).

This vulnerability has a CVSS 3.1 base score of 2.4, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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 unable to upgrade should avoid ingesting logo files from untrusted sources.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/nextcloud/security-advisories/security/advisories/GHSA-ch7f-px7m-hg25GitHubgithub.com/nextcloud/server/pull/36095GitHubgithub.com/nextcloud/security-advisories/security/advisories/GHSA-ch7f-px7m-hg25GitHubgithub.com/nextcloud/server/pull/36095

How CyberStrike helps

Frequently asked questions

What is CVE-2023-28833?

CVE-2023-28833 is a low-severity vulnerability. It was published on March 30, 2023 and has a CVSS 3.1 base score of 2.4 (LOW).

How severe is CVE-2023-28833?

This vulnerability has a CVSS 3.1 base score of 2.4, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-28833?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-28833?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-28833 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related LOW CVEs from 2023

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999