CVE-2024-3804: Vesystem Cloud Desktop fileupload2.php unrestricted upload

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of 29 Oct 2026.

VulnCheck KEV lists it since 8 Jun 2025. It cites 1 public report, the first from 8 Jun 2025.

• app.crowdsec.net

How likely is exploitation in the next 30 days?

0.5%

EPSS score, percentile 40.7 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?

6.3 Medium

CVSS v3.1 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

• 20240408

Versions by product

Source: CISA KEV 2026.10.29, as of 29 Oct 2026; VulnCheck KEV, as of 30 Oct 2026; FIRST EPSS, as of 29 Oct 2026; CVE List, as of 30 Oct 2026. About the data.

Description

Vesystem Cloud Desktop fileupload2.php unrestricted upload

A vulnerability, which was classified as critical, has been found in Vesystem Cloud Desktop up to 20240408. This issue affects some unknown processing of the file /Public/webuploader/0.1.5/server/fileupload2.php. The manipulation of the argument file leads to unrestricted upload. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-260777 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Source: CVE List, as of 30 Oct 2026. About the data.

What to do

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

This summary is based on the CVE record as of 30 Oct 2026. Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Source: CVE List, as of 30 Oct 2026. About the data.

Timeline