What’s Vulnerable › Vulnerabilities

CVE-2026-93961: Dromara UJCMS UserController UserController.java usernameExist improper authorization

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-20 · updated 2026-09-21
• Weakness: CWE-266

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.

Affected products

• Dromara UJCMS: 12.3.0, 12.3.1

References

• https://github.com/dromara/ujcms/
• https://github.com/dromara/ujcms/issues/22
• https://vuldb.com/cve/CVE-2026-93961
• https://vuldb.com/submit/944238
• https://vuldb.com/vuln/407920
• https://vuldb.com/vuln/407920/cti

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