VULNERABILITY INTELLIGENCE

CVE-2021-42839

CVSS score8.8 HIGH
EPSS probability2.43%
CISA KEVNot currently listed
Published2021-11-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • twcert@cert.org.tw: CWE-434

Primary references