CVE-2020-21359

CRITICAL

Maccms - Unrestricted File Upload

Title source: rule
STIX 2.1

Description

An arbitrary file upload vulnerability in the Template Upload function of Maccms10 allows attackers bypass the suffix whitelist verification to execute arbitrary code via adding a character to the end of the uploaded file's name.

References (1)

Core 1
Core References
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/magicblack/maccms10/issues/80

Scores

CVSS v3 9.8
EPSS 0.0111
EPSS Percentile 78.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-434
Status published
Products (1)
maccms/maccms 10.0
Published Aug 11, 2021
Tracked Since Feb 18, 2026