CVE-2025-56869: sync-in server Path Traversal (CVSS 5.3)

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.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness Type (CWE)

CWE-22 Path Traversal

Affected Products

Vendor	Product	Versions
sync-in	sync-in_server	< 1.1.1

References

Other References

https://github.com/Sync-in/server https://github.com/Sync-in/server/releases/tag/v1.2.0 https://sync-in.com/

Frequently Asked Questions

What is CVE-2025-56869? +

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. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2025-56869? +

CVE-2025-56869 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-56869? +

CVE-2025-56869 affects products from sync-in, specifically: sync-in_server. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-56869? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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