zhistaredu StarTraining Upload Endpoint MimeTypeUtils.java cross site scripting (CVE-2026-100880) | HOL Guard CVE

Medium · CVSS 5.1CVE-2026-100880

zhistaredu StarTraining Upload Endpoint MimeTypeUtils.java cross site scripting

Answer in brief

CVE-2026-100880 records a Medium severity (CVSS 5.1) vulnerability in zhistaredu StarTraining Upload Endpoint MimeTypeUtils.java cross site scripting. The current sources do not mark it as known exploited. The current feed maps zhistaredu/StarTraining (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 27, 2026Updated Sep 27, 2026Source checked Sep 27, 2026First seen by HOL Sep 27, 2026Material review Sep 27, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.1
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 5.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps zhistaredu/StarTraining (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
zhistaredu/StarTraininggeneric	3.8.0 \|\| 3.8.1	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for zhistaredu/StarTraining.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 27, 2026

Sources and claim methodology

Upstream source description

A weakness has been identified in zhistaredu StarTraining up to 3.8.1. This vulnerability affects unknown code of the file du-common/src/main/java/com/edu/common/utils/file/MimeTypeUtils.java of the component Upload Endpoint. This manipulation of the argument File causes cross site scripting. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Quoted source text, attributed separately from HOL analysis.