CVE-2026-84423

medium

Description

A vulnerability has been found in Casdoor up to 4.0.0. This affects an unknown function of the file controllers/resource.go of the component upload-resource API. Such manipulation leads to missing authentication. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor deleted the GitHub issue for this vulnerability without any explanation. Afterwards the vendor was contacted early about this disclosure via email but did not respond in any way.

References

https://vuldb.com/vuln/397791/cti

https://vuldb.com/vuln/397791

https://vuldb.com/submit/883037

https://vuldb.com/cve/CVE-2026-84423

https://github.com/geo-chen/oss/blob/main/casdoor.md#finding-1-unauthenticated-arbitrary-file-upload-via-apiupload-resource

https://github.com/casdoor/casdoor/issues/5617

https://github.com/casdoor/casdoor/

Details

Source: Mitre, NVD

Published: 2026-09-01

Updated: 2026-09-02

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 7.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Severity: High

CVSS v4

Base Score: 6.9

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00401