CVE-2020-20287 Information

Description

Unrestricted file upload vulnerability in the yccms 3.3 project. The xhUp function’s improper judgment of the request parameters triggers remote code execution.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.yccms.net/ https://blog.jiguang.xyz/posts/remote-code-execution-via-upload-image/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8