CVE-2026-84423
A vulnerability has been found in Casdoor up to 4.0.0.
Does this matter?
Lower severity and a low EPSS score (0.40%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 5.5 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.40% probability · 34th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287, CWE-306
- Source
- cna@vuldb.com
References
- https://github.com/casdoor/casdoor/
- https://github.com/casdoor/casdoor/issues/5617
- https://github.com/geo-chen/oss/blob/main/casdoor.md#finding-1-unauthenticated-arbitrary-file-upload-via-apiupload-resource
- https://vuldb.com/cve/CVE-2026-84423
- https://vuldb.com/submit/883037
- https://vuldb.com/vuln/397791
- https://vuldb.com/vuln/397791/cti
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.