VULNERABILITY INTELLIGENCE

CVE-2020-20287

CVSS score9.8 CRITICAL

EPSS probability2.95%

CISA KEVNot currently listed

Published2021-02-01

Last modified2026-06-17

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

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.

Weakness classification

nvd@nist.gov: CWE-434

Primary references

cve@mitre.org — Broken Link, URL Repurposed
cve@mitre.org — Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Broken Link, URL Repurposed
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory