RCE in Zhistaredu Startraining
CVE-2026-100881
A security vulnerability has been detected in zhistaredu StarTraining up to 3.8.1. This issue affects some unknown processing of the file application.yml. Such manipulation of the argument xss.enabled leads to cross site scripting. It is possible to launch the attack remotely. Attacks of this nature are highly complex. The exploitability is assessed as difficult. The exploit has been disclosed publicly and may be used. Not independently exploitable: a defense-in-depth absence that amplifies CVE-2026-100880. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: XSS (Cross-Site Scripting)
Published .
CVSS v3 metric
CVSS v3 base score 2.6 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N.
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/410811 (technical-description, vdb-entry)
- vuldb.com/vuln/410811/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-100881 (third-party-advisory)
- vuldb.com/submit/915513 (third-party-advisory)
- github.com/ArrestX/startraining-advisories/blob/main/advisories/ST-VULN-007-xss… (exploit)
Frequently asked questions
- What is CVE-2026-100881?
- CVE-2026-100881 is a low-severity vulnerability in Zhistaredu Startraining, classified under Cross-site Scripting. CVSS score: 2.6/10. Published 2026-09-27.
- How severe is CVE-2026-100881?
- Low severity. CVSS v3 base score is 2.6 out of 10.