CVE-2025-56869Network attack vector

Authenticated file read and write via path traversal

Published Sep 19, 2025 · Updated Sep 19, 2025

Path traversal in Sync-in Server 1.1.1 and earlier allows remote authenticated users to read and write files outside managed storage. FilesManager.saveMultipart and FilesManager.compress use attacker-controlled path input without enforcing that the resolved destination remains within the authorized storage root. A valid account is the stated gate; CISA's separate CVSS assessment instead records no privileges required.

CVSS severity5.3
Medium
EPSS probability0.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Path traversal in Sync-in Server 1.1.1 and earlier allows remote authenticated users to read and write files outside managed storage. FilesManager.saveMultipart and FilesManager.compress use attacker-controlled path input without enforcing that the resolved destination remains within the authorized storage root. A valid account is the stated gate; CISA's separate CVSS assessment instead records no privileges required.

The record

CVE
CVE-2025-56869
Published
Sep 19, 2025
Updated
Sep 19, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1565.001, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 19, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 19, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1565.001Stored Data Manipulation
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo