How severe is CVE-2023-3804?

CVE-2023-3804 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2023-3804 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3804?

CVE-2023-3804 affects Cdwanjiang Flash Flood Disaster Monitoring And Warning System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-3804?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-3804 published?

CVE-2023-3804 was published on 2023-07-21 and last updated on 2026-06-17.

CVE-2023-3804

CVE-2023-3804 is a medium-severity vulnerability in Cdwanjiang Flash Flood Disaster Monitoring And Warning System with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 5.2
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Cdwanjiang Flash Flood Disaster Monitoring And Warning System
Published: 2023-07-21
Last modified: 2026-06-17

Description

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/FileHandler.ashx. The manipulation of the argument userFile leads to unrestricted upload. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-235072. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2023-3804?: 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/FileHandler.ashx. The manipulation of the argument userFile leads to unrestricted upload. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-235072. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2023-3804?: CVE-2023-3804 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2023-3804 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3804?: CVE-2023-3804 affects Cdwanjiang Flash Flood Disaster Monitoring And Warning System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-3804?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-3804 published?: CVE-2023-3804 was published on 2023-07-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cdwanjiang:flash_flood_disaster_monitoring_and_warning_system:2.0:*:*:*:*:*:*:*

More vulnerabilities in Cdwanjiang Flash Flood Disaster Monitoring And Warning System

CVE-2023-3802 — Medium (CVSS 5.5): A vulnerability was found in Chengdu Flash Flood Disaster Monitoring and Warning System 2.0. It has been rated as…
CVE-2023-3798 — Medium (CVSS 5.5): A vulnerability has been found in Chengdu Flash Flood Disaster Monitoring and Warning System 2.0 and classified as…
CVE-2023-4172 — Medium (CVSS 4.3): A vulnerability, which was classified as problematic, has been found in Chengdu Flash Flood Disaster Monitoring and…
CVE-2023-4171 — Medium (CVSS 4.3): A vulnerability classified as problematic was found in Chengdu Flash Flood Disaster Monitoring and Warning System 2.0.…
CVE-2023-3803 — Low (CVSS 2.6): A vulnerability classified as problematic has been found in Chengdu Flash Flood Disaster Monitoring and Warning System…

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