Support Board <= 3.3.3 - Multiple Unauthenticated SQL Injections

9.8
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE CVE-2021-24741
CVSS 9.8 (Critical)
Publicly Published September 3, 2021
Last Updated January 22, 2024
Researcher John Jefferson Li

Description

The Support Board WordPress plugin before 3.3.4 does not escape multiple POST parameters (such as status_code, department, user_id, conversation_id, conversation_status_code, and recipient_id) before using them in SQL statements, leading to SQL injections which are exploitable by unauthenticated users.

Learn more about SQL Injection vulnerabilities and how to prevent them.

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Vulnerability Details for Support Board

Software Type Plugin
Software Slug supportboard
Patched? Yes
Remediation Update to version 3.3.4, or a newer patched version
Affected Version
  • <= 3.3.3
Patched Version
  • 3.3.4

Recent vulnerabilities in Support Board

# Title CVE ID CVSS Researchers Date
1 Support Board < 3.8.9 - Unauthenticated Privilege Escalation CVE-2026-27395 9.8 Phat RiO June 1, 2026
2 Support Board < 3.8.7 - Reflected Cross-Site Scripting CVE-2025-60182 6.1 Trương Hữu Phúc (truonghuuphuc) July 31, 2025
3 Support Board <= 3.8.0 - Reflected Cross-Site Scripting CVE-2025-54027 6.1 Tran Nguyen Bao Khanh July 23, 2025
4 Support Board <= 3.8.0 - Unauthenticated Local File Inclusion CVE-2025-54031 8.1 Tran Nguyen Bao Khanh July 22, 2025
5 Support Board <= 3.8.0 - Unauthenticated Arbitrary File Deletion CVE-2025-4828 9.8 Foxyyy July 8, 2025
6 Support Board <= 3.8.0 - Unauthenticated Authorization Bypass due to Use of Default Secret Key CVE-2025-4855 9.8 Foxyyy July 8, 2025
7 Support Board <= 3.4.1 - Authenticated SQL Injection 8.8 zhangxf January 19, 2022
8 Support Board < 3.3.6 - Cross-Site Request Forgery CVE-2021-24823 8.1 Brandon James Roldan (tomorrowisnew) October 18, 2021
9 Support Board <= 3.3.4 - Agent+ Stored Cross-Site Scripting CVE-2021-24807 6.4 John Jefferson Li October 7, 2021
10 Support Board <= 1.2.8 - Authenticated Stored Cross-Site Scripting 6.4 R3N0 June 11, 2019

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