What’s Vulnerable › Vulnerabilities

CVE-2020-9447

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-02-28 · updated 2026-06-17
• Weakness: CWE-79

Description

There is an XSS (cross-site scripting) vulnerability in GwtUpload 1.0.3 in the file upload functionality. Someone can upload a file with a malicious filename, which contains JavaScript code, which would result in XSS. Cross-site scripting enables attackers to steal data, change the appearance of a website, and perform other malicious activities like phishing or drive-by hacking.

Affected products

• Gwtupload Project Gwtupload: 1.0.3

References

• https://github.com/manolo/gwtupload/issues/32
• https://www.coresecurity.com/advisories/gwtupload-xss-file-upload-functionality
• https://github.com/manolo/gwtupload/issues/32
• https://www.coresecurity.com/advisories/gwtupload-xss-file-upload-functionality

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