CVE-2026-93961— Dromara UJCMS UserController UserController.java usernameExist improper authorization
Quick assessment
Affected
Dromara UJCMS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
在 Dromara UJCMS 12.3.1 及以下版本中发现了一个安全漏洞。受影响的组件是 中的 函数，位于文件 。 通过对参数 进行操纵，会导致授权机制失效（即不当的授权处理）。该漏洞支持远程触发攻击。 项目维护方已通过 issue 报告得知该问题，但截至当前尚未作出回应。
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I. Basic Information for CVE-2026-93961
Vulnerability Information
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Vulnerability Title
Dromara UJCMS UserController UserController.java usernameExist improper authorization
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-93961
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Other References for CVE-2026-93961 (2)
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V. Comments for CVE-2026-93961
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