CVE-2020-20287

PoC —

CVSS 3.1

9.8 critical

EPSS

3%p86

Published

Feb 1, 2021 (Feb 1, 2021)

Modified

Jun 17, 2026

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.

Vendors: yccms
Products: yccms
Weakness: CWE-434
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (2.8%)

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