CVE-2021-47899
YetiShare File Hosting Script 5.1.0 Remote File Upload SSRF Vulnerability
- State
- Published
- Severity
- 6.9 Medium
- Published
- Jan 23, 2026
- Updated
- Oct 1, 2026
- Reserved
- Jan 18, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L | VulnCheck |
| 3.1 | 4.0 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N | VulnCheck |
Weaknesses
- CWE-434 Unrestricted Upload of File with Dangerous Type
Affected Products
| Product | Versions |
|---|---|
YetiShare File Hosting ScriptMfscripts |
|
References
- ExploitDB-49534exploit
- Vendor Homepageproduct
- Software Product Pageproduct
- VulnCheck Advisory: YetiShare File Hosting Script 5.1.0 Remote File Upload SSRF Vulnerabilitythird-party-advisory
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