Improper Authorization in Dromara UJCMS 12.3.1 UserController usernameExist
CVE-2026-93961 Published on September 20, 2026
Dromara UJCMS UserController UserController.java usernameExist improper authorization
A security flaw has been discovered in Dromara UJCMS up to 12.3.1. The affected element is the function usernameExist of the file ujcms-cms/src/main/java/com/ujcms/cms/core/web/api/UserController.java of the component UserController. Performing a manipulation of the argument Username results in improper authorization. It is possible to initiate the attack remotely. The project was informed of the problem early through an issue report but has not responded yet.
Timeline
Advisory disclosed
VulDB entry created
VulDB entry last update
Weakness Types
What is an AuthZ Vulnerability?
The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-93961 has been classified to as an AuthZ vulnerability or weakness.
Incorrect Privilege Assignment
A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.
Products Associated with CVE-2026-93961
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Affected Versions
Dromara UJCMS:- Version 12.3.0 is affected.
- Version 12.3.1 is affected.