CVE-2020-21005

PoC —

CVSS 3.1

6.5 medium

EPSS

<1%p55

Published

Jun 3, 2021 (Jun 3, 2021)

Modified

Jun 17, 2026

Description

WellCMS 2.0 beta3 is vulnerable to File Upload. A user can log in to the CMS background and upload a picture. Because the upload file type is controllable, the user can modify the upload file type to get webshell.

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

NVD CVE.org GitHub PoCs EPSS (0.8%)

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