CVE-2026-84423
HighCVSS 7.3Exploitation Probability (EPSS)
Low risk33th percentile - higher than 33% of all known CVEs
Summary
A vulnerability in Casdoor up to version 4.0.0 affects an unknown function in the file controllers/resource.go of the upload-resource API component. This manipulation leads to missing authentication, and the attack can be launched remotely. The exploit has been publicly disclosed, and the vendor deleted the GitHub issue without explanation and did not respond to email contact.
Risk Assessment
Missing authentication in the API could allow unauthorized users to access resource upload functionality, potentially leading to unauthorized operations or data integrity compromise.
Recommendation
It is recommended to immediately update Casdoor to the latest available version if one exists, and monitor public information for a patch. Temporarily restrict access to the upload-resource API to trusted networks only.
Other vulnerabilities in Casdoor
See all- CVE-2026-90942Critical
Casdoor through 4.4.0 fails to properly mask the instance-wide built-in certificate private key in /api/get-certs and /api/get-cert endpoints, allowing organization administrators to retrieve it. Attackers can use the exposed private key to forge JWT tokens for any user in any organization, including global administrators.
- CVE-2026-32662Medium
Development and test API endpoints that mirror production functionality are present in the application. This means they may be accessible in the production environment, posing a risk of unauthorized access.
- CVE-2026-5469Medium
Casdoor 2.356.0 has a server-side request forgery (SSRF) vulnerability in the Webhook URL Handler component. The attack can be launched remotely without authentication.
- CVE-2026-5468Low
In Casdoor version 2.356.0, the dangerouslySetInnerHTML function is vulnerable to cross-site scripting via manipulation of the formCss, formCssMobile, or formSideHtml arguments. The attack can be launched remotely, and the exploit has been publicly released. The vendor did not respond.
- CVE-2026-5467Medium
A vulnerability was identified in Casdoor 2.356.0 in the OAuth Authorization Request Handler. Manipulation of the redirect_uri argument leads to an open redirect. The attack can be performed remotely and the exploit is publicly available.
- CVE-2025-61524High
In Casdoor version 2.26.0 and earlier, a vulnerability in the permission verification module and organization/application editing interface allows remote authenticated administrators of any organization to bypass the system's permission verification mechanism by directly concatenating URLs after login. The issue is fixed in version 2.63.0.
- CVE-2023-34927Medium
Casdoor v1.331.0 and below was found to contain a Cross-Site Request Forgery (CSRF) vulnerability in the /api/set-password endpoint. This vulnerability allows attackers to arbitrarily change the victim user's password by supplying a crafted URL.
Original NVD description (English source)
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.