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CVE-2023-45150

4.3 · MEDIUM

Nextcloud calendar is a calendar app for the Nextcloud server platform.

Published Oct 16, 2023CWE-400EPSS 0.48%

Overview

CVE-2023-45150 is a medium-severity vulnerability. It was published on October 16, 2023 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Nextcloud calendar is a calendar app for the Nextcloud server platform. Due to missing precondition checks the server was trying to validate strings of any length as email addresses even when megabytes of data were provided, eventually making the server busy and unresponsive. It is recommended that the Nextcloud Calendar app is upgraded to 4.4.4. The only workaround for users unable to upgrade is to disable the calendar app.

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/calendar/pull/5358GitHubgithub.com/nextcloud/security-advisories/security/advisories/GHSA-r936-8gwm-w452Refhackerone.com/reports/2058337GitHubgithub.com/nextcloud/calendar/pull/5358GitHubgithub.com/nextcloud/security-advisories/security/advisories/GHSA-r936-8gwm-w452Refhackerone.com/reports/2058337

How CyberStrike helps

Frequently asked questions

What is CVE-2023-45150?

CVE-2023-45150 is a medium-severity vulnerability. It was published on October 16, 2023 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2023-45150?

This vulnerability has a CVSS 3.1 base score of 4.3, 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-2023-45150?

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-2023-45150?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-45150 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.

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