VULNERABILITY INTELLIGENCE

CVE-2021-26634

CVSS score9.8 CRITICAL
EPSS probability1.37%
CISA KEVNot currently listed
Published2022-06-02
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

SQL injection and file upload attacks are possible due to insufficient validation of input values in some parameters and variables of files compromising Maxboard, which may lead to arbitrary code execution or privilege escalation. Attackers can use these vulnerabilities to perform attacks such as stealing server management rights using a web shell.

Weakness classification

  • vuln@krcert.or.kr: CWE-89
  • nvd@nist.gov: CWE-434

Primary references