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Fencer Vulns
medium 5.5

CVE-2023-3802 json

Chengdu Flash Flood Disaster Monitoring and Warning System Ajaxfileupload.ashx unrestricted upload

published 2023-07-21 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-44435

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

A vulnerability was found in Chengdu Flash Flood Disaster Monitoring and Warning System 2.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the file /Controller/Ajaxfileupload.ashx. The manipulation of the argument file leads to unrestricted upload. The exploit has been disclosed to the public and may be used. VDB-235070 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Exploit prediction

0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/GUIqizsq/cve/blob/main/upload_1.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 5.5 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA 3.0 5.5 CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA 2.0 5.2 AV:A/AC:L/Au:S/C:P/I:P/A:P
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Chengdu Flash Flood Disaster Monitoring and Warning System

Classification

Weakness
  • 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.