CVE-2021-47899

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.

Score

CVSS 4.0 6.9 Medium

Status

Deferred - disclosure@vulncheck.com

Published

2026-01-23

Last modified

2026-10-01

Weaknesses

CWE-434

Affected products

• Yetishare (Mfscripts)

References

• https://mfscripts.com
• https://www.exploit-db.com/exploits/49534
• https://www.vulncheck.com/advisories/yetishare-file-hosting-script-remote-file-upload-ssrf-vulnerability
• https://yetishare.com