CVE-2023-4171Public exploitNetwork attack vector

Arbitrary file read via Files path traversal

Published Aug 5, 2023 · Updated Nov 21, 2024

Path traversal in Chengdu Flash Flood Disaster Monitoring and Warning System 2.0 allows remote attackers to read server files. FileDownload.ashx accepts the Files query value as a relative path; the published request traverses upward to retrieve web.config. The published request contains no credentials, although VulDB rates low privileges while NVD rates none; successful traversal exposes readable server files.

CVSS severity5.3
Medium
EPSS probability1.06%
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 Chengdu Flash Flood Disaster Monitoring and Warning System 2.0 allows remote attackers to read server files. FileDownload.ashx accepts the Files query value as a relative path; the published request traverses upward to retrieve web.config. The published request contains no credentials, although VulDB rates low privileges while NVD rates none; successful traversal exposes readable server files.

The record

CVE
CVE-2023-4171
Published
Aug 5, 2023
Updated
Nov 21, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-24, T1005
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 21, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
4.0VulDBAV:N/AC:L/Au:S/C:P/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.

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

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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-24Path Traversal: '../filedir'
T1005Data from Local System

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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