CVE-2026-104909
HighCVSS 8.1Summary
The Mang Board plugin for WordPress is vulnerable to Local File Inclusion in all versions up to and including 2.4.3 via the '<mode>_type' parameter. This allows unauthenticated attackers to include and execute arbitrary .php files on the server, enabling access control bypass, sensitive data disclosure, or code execution. Exploitation is trivial via an unauthenticated POST to any page rendering a public [mb_board] shortcode, and on standard PHP installations pearcmd.php can be leveraged to write and include an attacker-controlled payload in a single request.
Risk Assessment
An unauthenticated attacker can execute arbitrary PHP code on the server, leading to full site compromise and data exfiltration. The risk is high because exploitation requires no account or user interaction.
Recommendation
Upgrade the Mang Board plugin to a version later than 2.4.3 or disable it if no update is available. Consider disabling public [mb_board] shortcodes until the fix is applied.
Other vulnerabilities in Mang Board
See all- CVE-2026-107751High
The Mang Board plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'user_name' parameter in all versions up to and including 2.4.3 due to insufficient input sanitization and output escaping. The save-time sanitizer mbw_htmlspecialchars2() is ineffective because the exploit payload relies solely on unquoted HTML attribute syntax using only spaces, alphanumerics, and characters such as =, parentheses, and dots.
- CVE-2026-104761Medium
The Mang Board plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'content' parameter in all versions up to, and including, 2.4.3 due to insufficient input sanitization and output escaping. This allows authenticated attackers with custom-level access and above to inject arbitrary web scripts that execute whenever a user accesses an injected page.
- CVE-2026-96871High
The Mang Board plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'data_type' parameter in all versions up to and including 2.4.2 due to insufficient input sanitization and output escaping. This is exploitable on any board configured with the default write_level=0 and editor_type=N settings.
Original NVD description (English source)
The Mang Board plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 2.4.3 via the '<mode>_type (e.g. foo_type)' parameter parameter. This makes it possible for unauthenticated attackers to include and execute arbitrary .php files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where .php file types can be uploaded and included. Exploitation is trivial via an unauthenticated POST to any page rendering a public [mb_board] shortcode, as no nonce or capability check is enforced on the shortcode render path; on servers with a standard PHP installation, pearcmd.php can be leveraged to write and then include an attacker-controlled payload file in a single request.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS