What’s Vulnerable › Vulnerabilities

CVE-2021-26633: Maxboard SQL injection and LFI vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-06-02 · updated 2026-06-17
• Weakness: CWE-89

Description

SQL injection and Local File Inclusion (LFI) vulnerabilities in MaxBoard can cause information leakage and privilege escalation. This vulnerabilities can be exploited by manipulating a variable with a desired value and inserting and arbitrary file.

Affected products

• MaxBoard: before 1.9.4 — fixed in 1.9.4

How to fix

Upgrade to a fixed version: MaxBoard 1.9.4. Check the vendor advisory for mitigations.

References

• https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66745
• https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66745

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