TI-2023-03860 Aliases CVE-2023-4171 GHSA-4wj3-6rq6-hrw7

Chengdu Flash Flood Disaster Monitoring and Warning System FileDownload.ashx path traversal

MEDIUM 57CWE-24Published 2023-08-05 · Updated 2024-11-21

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Low · None · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

A vulnerability classified as problematic was found in Chengdu Flash Flood Disaster Monitoring and Warning System 2.0. This vulnerability affects unknown code of the file \Service\FileDownload.ashx. The manipulation of the argument Files leads to path traversal: '../filedir'. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-236206 is the identifier assigned to this vulnerability.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.01065 64th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Chengdu	Flash Flood Disaster Monitoring and Warning System	2.0	—	No fix listed	CNA

Flash Flood Disaster Monitoring and Warning System VendorChengdu Affected 2.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cdwanjiang:flash_flood_disaster_monitoring_and_warning_system:2.0:::::::*	2.0	Vulnerable	Cdwanjiang

cpe:2.3:a:cdwanjiang:flash_flood_disaster_monitoring_and_warning_system:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Cdwanjiang

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-4171
2026-10-03 Alias added: GHSA-4wj3-6rq6-hrw7

References

Exploit 1

https://github.com/nagenanhai/cve/blob/main/duqu.md

TI-2023-03555 Chengdu Flash Flood Disaster Monitoring and Warning System FileHandler.ashx unrestricted upload CVSS 3.1CRITICAL 9.8
TI-2023-03553 Chengdu Flash Flood Disaster Monitoring and Warning System Ajaxfileupload.ashx unrestricted upload CVSS 3.1CRITICAL 9.8
TI-2023-03549 Chengdu Flash Flood Disaster Monitoring and Warning System upload.aspx unrestricted upload CVSS 3.1CRITICAL 9.8
TI-2023-03861 Chengdu Flash Flood Disaster Monitoring and Warning System FileHandler.ashx absolute path traversal CVSS 3.1HIGH 7.5
TI-2023-03554 Chengdu Flash Flood Disaster Monitoring and Warning System File Name ImageStationDataService.asmx random values CVSS 3.1LOW 3.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences