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CVE-2023-48307

3.5 · LOW

Nextcloud Mail is the mail app for Nextcloud, a self-hosted productivity platform.

Published Nov 21, 2023CWE-918EPSS 0.87%

Overview

CVE-2023-48307 is a low-severity vulnerability. It was published on November 21, 2023 and has a CVSS 3.1 base score of 3.5 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.5, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Nextcloud Mail is the mail app for Nextcloud, a self-hosted productivity platform. Starting in version 1.13.0 and prior to version 2.2.8 and 3.3.0, an attacker can use an unprotected endpoint in the Mail app to perform a SSRF attack. Nextcloud Mail app versions 2.2.8 and 3.3.0 contain a patch for this issue. As a workaround, disable the mail 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/mail/pull/8709GitHubgithub.com/nextcloud/security-advisories/security/advisories/GHSA-4pp4-m8ph-2999Refhackerone.com/reports/1869714GitHubgithub.com/nextcloud/mail/pull/8709GitHubgithub.com/nextcloud/security-advisories/security/advisories/GHSA-4pp4-m8ph-2999Refhackerone.com/reports/1869714

How CyberStrike helps

Frequently asked questions

What is CVE-2023-48307?

CVE-2023-48307 is a low-severity vulnerability. It was published on November 21, 2023 and has a CVSS 3.1 base score of 3.5 (LOW).

How severe is CVE-2023-48307?

This vulnerability has a CVSS 3.1 base score of 3.5, 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-2023-48307?

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-2023-48307?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-48307 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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