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CVE-2021-26634 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66746	CVE	Broken LinkThird Party Advisory
https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66746	[email protected]	Broken LinkThird Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-434	Unrestricted Upload of File with Dangerous Type	[email protected]
CWE-288	Authentication Bypass Using an Alternate Path or Channel	[email protected]
CWE-434	Unrestricted Upload of File with Dangerous Type	[email protected]
CWE-89	Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')	[email protected]

Affected Products

Product	Versions
maxb maxboard	< 1.9.6
CPE cpe:2.3:a:maxb:maxboard:::::::: Remediation No remediation found in references.
linux linux kernel	All versions
CPE cpe:2.3:o:linux:linux_kernel:-:::::::* Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jun 26, 2023	Reanalysis	[email protected]
Jun 9, 2022	Initial Analysis	[email protected]