CVE-2026-100878 zhistaredu StarTraining authRole Endpoint SysUser.java SysUser.isAdmin authorization

Medium 5.3 Published Updated

Remote attackers can bypass authorization checks in the authRole endpoint to escalate privileges within the StarTraining web application.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-100878?

CVE-2026-100878 is a medium-severity authentication bypass vulnerability in zhistaredu StarTraining, published on 27 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was identified in zhistaredu StarTraining up to 3.8.1. Affected by this issue is the function SysUser.isAdmin of the file edu-common/src/main/java/com/edu/common/core/domain/entity/SysUser.java of the component authRole Endpoint. The manipulation of the argument userId/roleIds leads to authorization bypass. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-639, CWE-285

Which versions are affected by CVE-2026-100878?

How do I fix CVE-2026-100878?

No fix has been published for CVE-2026-100878 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-100878 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100878 exists.

Sources

Also known as GHSA-mfp5-mpmc-79q6.

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