Auth bypass in Zhistaredu Startraining
CVE-2026-100878
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.
Published .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Zhistaredu Startraining — versions 3.8.0, 3.8.1
Weakness classification (CWE)
References
- vuldb.com/vuln/410808 (technical-description, vdb-entry)
- vuldb.com/vuln/410808/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-100878 (third-party-advisory)
- vuldb.com/submit/915510 (third-party-advisory)
- github.com/ArrestX/startraining-advisories/blob/main/advisories/ST-VULN-004-ido… (exploit)
Frequently asked questions
- What is CVE-2026-100878?
- CVE-2026-100878 is a medium-severity vulnerability in Zhistaredu Startraining, classified under Improper Authorization. CVSS score: 6.3/10. Published 2026-09-27.
- How severe is CVE-2026-100878?
- Medium severity. CVSS v3 base score is 6.3 out of 10.