CVE-2025-4530Public exploitNetwork attack vector

Authenticated file read via unchecked download path

Published May 11, 2025 · Updated May 12, 2025

Path traversal in production_ssm 1.0 allows remote authenticated users to read arbitrary server files through the file download route. The handleFileDownload method fails to reject Windows backslashes and dot-dot traversal sequences in fileName before opening the requested file. A valid backend session is required, and exposure is limited to files readable by the application process rather than file modification or service interruption.

CVSS severity4.3
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in production_ssm 1.0 allows remote authenticated users to read arbitrary server files through the file download route. The handleFileDownload method fails to reject Windows backslashes and dot-dot traversal sequences in fileName before opening the requested file. A valid backend session is required, and exposure is limited to files readable by the application process rather than file modification or service interruption.

The record

CVE
CVE-2025-4530
Published
May 11, 2025
Updated
May 12, 2025
Vendor
MegaGao
Product
production_ssm
Classifications
CWE-22, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 11, 2025CVE publishedPublication date reported by the CVE source.
  2. May 12, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MegaGao · production_ssmversion=1.0

Published CVSS scores

5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
4.0VulDBAV:N/AC:L/Au:S/C:P/I:N/A:N
4.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

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

Technologies

Your stack

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Your stack

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