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Fencer Vulns
low 2.6

CVE-2023-3803 json

Chengdu Flash Flood Disaster Monitoring and Warning System File Name ImageStationDataService.asmx random values

published 2023-07-21 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-44436

cvss
2.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

A vulnerability classified as problematic has been found in Chengdu Flash Flood Disaster Monitoring and Warning System 2.0. This affects an unknown part of the file /Service/ImageStationDataService.asmx of the component File Name Handler. The manipulation leads to insufficiently random values. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-235071. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Exploit prediction

0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/GUIqizsq/cve/blob/main/upload_2.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 2.6 CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CNA 3.0 2.6 CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CNA 2.0 1.4 AV:A/AC:H/Au:S/C:P/I:N/A:N
NVD 3.1 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

  • Chengdu Flash Flood Disaster Monitoring and Warning System

Classification

Weakness
  • CWE-330 Use of Insufficiently Random Values
  • CWE-434 Unrestricted Upload of File with Dangerous Type

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.