Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2023-28643

5.5 · MEDIUM

Nextcloud server is an open source home cloud implementation.

Published Mar 30, 2023CWE-706EPSS 0.79%

Overview

CVE-2023-28643 is a medium-severity vulnerability. It was published on March 30, 2023 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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 when a recipient receives 2 shares with the same name, while a memory cache is configured, the second share will replace the first one instead of being renamed to `{name} (2)`. It is recommended that the Nextcloud Server is upgraded to 25.0.3 or 24.0.9. Users unable to upgrade should avoid sharing 2 folders with the same name to the same user.

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-hhq4-4pr8-wm27GitHubgithub.com/nextcloud/server/issues/34015GitHubgithub.com/nextcloud/server/pull/36047GitHubgithub.com/nextcloud/security-advisories/security/advisories/GHSA-hhq4-4pr8-wm27GitHubgithub.com/nextcloud/server/issues/34015GitHubgithub.com/nextcloud/server/pull/36047

How CyberStrike helps

Frequently asked questions

What is CVE-2023-28643?

CVE-2023-28643 is a medium-severity vulnerability. It was published on March 30, 2023 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-28643?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-28643?

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-2023-28643?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-28643 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 MEDIUM CVEs from 2023

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999