CVE-2026-39387— BoidCMS: Local File Inclusion (LFI) leads to Remote Code Execution (RCE) via tpl parameter

BoidCMS: Local File Inclusion (LFI) leads to Remote Code Execution (RCE) via tpl parameter

BoidCMS is an open-source, PHP-based flat-file CMS for building simple websites and blogs, using JSON as its database. Versions prior to 2.1.3 are vulnerable to a critical Local File Inclusion (LFI) attack via the tpl parameter, which can lead to Remote Code Execution (RCE).The application fails to sanitize the tpl (template) parameter during page creation and updates. This parameter is passed directly to a require_once() statement without path validation. An authenticated administrator can exploit this by injecting path traversal sequences (../) into the tpl value to escape the intended theme directory and include arbitrary files — specifically, files from the server's media/ directory. When combined with the file upload functionality, this becomes a full RCE chain: an attacker can first upload a file with embedded PHP code (e.g., disguised as image data), then use the path traversal vulnerability to include that file via require_once(), executing the embedded code with web server privileges. This issue has been fixed in version 2.1.3.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

PHP程序中Include/Require语句包含文件控制不恰当(PHP远程文件包含)

BoidCMS 安全漏洞

BoidCMS是BoidCMS开源的一个免费的开源平面文件 CMS，用于构建简单的网站和博客，使用 PHP 开发并使用 JSON 作为数据库。 BoidCMS 2.1.3之前版本存在安全漏洞，该漏洞源于对tpl参数清理不足，可能导致本地文件包含攻击，进而导致远程代码执行。

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