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CVE-2025-56869

5.3 · MEDIUM

Directory traversal vulnerability in Sync In server thru 1.1.1 allowing authenticated attackers to gain read and write access to the system via FilesManager.saveMultipart function in backend/src/ap…

Published Sep 19, 2025CWE-22EPSS 0.74%

Overview

CVE-2025-56869 is a medium-severity vulnerability. It was published on September 19, 2025 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Directory traversal vulnerability in Sync In server thru 1.1.1 allowing authenticated attackers to gain read and write access to the system via FilesManager.saveMultipart function in backend/src/applications/files/services/files-manager.service.ts, and FilesManager.compress function in backend/src/applications/files/services/files-manager.service.ts.

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/Sync-in/serverGitHubgithub.com/Sync-in/server/releases/tag/v1.2.0Refsync-in.com/

How CyberStrike helps

Frequently asked questions

What is CVE-2025-56869?

CVE-2025-56869 is a medium-severity vulnerability. It was published on September 19, 2025 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2025-56869?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-56869?

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-2025-56869?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-56869 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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