What’s Vulnerable › Vulnerabilities

CVE-2026-100880: zhistaredu StarTraining Upload Endpoint MimeTypeUtils.java cross site scripting

• Severity: low (CVSS 3.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-27 · updated 2026-09-28
• Weakness: CWE-79

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.

Affected products

• zhistaredu StarTraining: 3.8.0, 3.8.1

References

• https://github.com/ArrestX/startraining-advisories/blob/main/advisories/ST-VULN-006-stored-html-upload-xss.md
• https://vuldb.com/cve/CVE-2026-100880
• https://vuldb.com/submit/915512
• https://vuldb.com/vuln/410810
• https://vuldb.com/vuln/410810/cti

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