CVE-2021-42839 Information

Description

Grand Vice info Co. webopac7 file upload function fails to filter special characters. While logging in with general user’s permission remote attackers can upload malicious script and execute arbitrary code to control the system or interrupt services.

CVSS Vector

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

Reference

https://www.twcert.org.tw/tw/cp-132-5288-9d546-1.html

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8