CVE-2021-47899
Medium
Description
YetiShare File Hosting Script 5.1.0 contains a server-side request forgery vulnerability that allows attackers to read local system files through the remote file upload feature. Attackers can exploit the url parameter in the url_upload_handler endpoint to access sensitive files like /etc/passwd by using file:/// protocol.
SeverityMedium
CVSS4.0
Exploit probability—
ProductYetiShare File Hosting Script
PublishedJan 23, 2026
First seenJan 23, 2026
Weakness typeCWE-434Unrestricted upload of dangerous file type
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Mfscripts YetiShare File Hosting Script | v5.1.0 | — |
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