Casdoor through 4.4.0 contains an authorization bypass vulnerability in the /api/mcp endpoint that allows attackers with any application's clientId and clientSecret to gain unrestricted access to user administration across all organizations. Attackers can enumerate user records including password salts and email addresses, create administrator accounts, modify existing users, and delete them in any organization by supplying legitimate credentials from a single application.

Casdoor v1.97.3 was discovered to contain an arbitrary file write vulnerability via the fullFilePath parameter at /api/upload-resource.

Casdoor before v1.126.1 was discovered to contain an arbitrary file deletion vulnerability via the uploadFile function.

The query API in Casdoor before 1.13.1 has a SQL injection vulnerability related to the field and value parameters, as demonstrated by api/get-organizations.