CVE-2026-114623— baserCMS BcThemeFile 目录遍历导致文件泄露
一分钟漏洞结论
影响对象
baserproject basercms
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
baserCMS 是一个网站开发框架。在 5.0.0 至 5.3.2 之前，以及 5.4.0 至 5.4.2 之前的版本中，仅拥有主题文件查看权限的已认证用户，可通过可选的 BcThemeFile 插件的后台管理网页界面，遍历并访问主题目录之外的文件。ThemeFilesController::parseArgs() 方法会构建包含字面 "../" 片段的路径，而 view 和 edit 动作在未进行路径包含验证的情况下，将该路径传递给 ThemeFilesService::get()。权限检查针对的是未解析的请求
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一、 漏洞 CVE-2026-114623 基础信息
漏洞信息
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Vulnerability Title
baserCMS: Path traversal in the BcThemeFile admin screen allows file disclosure
来源: CVE Program / CVE List V5
Vulnerability Description
baserCMS is a website development framework. In versions 5.0.0 before 5.3.2 and 5.4.0 before 5.4.2, an authenticated user with only theme-file view permission can traverse outside the theme directory through the optional BcThemeFile plugin's Admin web screen. ThemeFilesController::parseArgs() constructs a path containing literal ../ segments, and the view and edit actions pass it to ThemeFilesService::get() without containment validation. Authorization checks the unresolved request path, after which ThemeFile::_getContents() reads the resolved file and exposes its contents in the form textarea. A client must preserve the dot segments rather than normalize them away. Readable files are limited to .php, .css, .js, and .ctp; this can disclose application source and config/install.php database credentials in MySQL or PostgreSQL deployments, while SQLite configurations have an empty database password. Reading config/app_local.php may expose the Security.salt fallback, which is effective only when not overridden by environment configuration. The flaw does not disclose .env, .pem, or SQLite .db files, does not itself permit file writes or code execution, and does not affect the separate API getFullpath() route. The plugin is disabled by default and unauthenticated requests are not sufficient. This issue has been patched in versions 5.3.2 and 5.4.2.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| baserproject | basercms | >= 5.0.0, < 5.3.2 | - |
|
二、漏洞 CVE-2026-114623 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-114623 其他参考 (5)
-
https://github.com/baserproject/basercms/releases/tag/5.4.2 x_refsource_MISC
-
https://github.com/baserproject/basercms/releases/tag/5.3.2 x_refsource_MISC
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https://github.com/baserproject/basercms/security/advisories/GHSA-rqr8-gmx5-xvrr x_refsource_CONFIRM
同批安全公告 · baserproject · 2026-10-23 · 共 8 条
| CVE-2026-114621 | 8.8 HIGH | baserCMS 管理面板及 API 的 SQL 注入漏洞 |
| CVE-2026-115481 | 8.5 HIGH | baserCMS BcCustomContent 任意文件上传漏洞 |
| CVE-2026-114622 | 7.2 HIGH | baserCMS 主题文件 API 绕过编码路径遍历漏洞 |
| CVE-2026-114624 | 7.2 HIGH | baserCMS 小部件区域 PHP 对象注入漏洞 |
| CVE-2026-115457 | 7.1 HIGH | baserCMS 博客评论未授权存储型 XSS 漏洞 |
| CVE-2026-115479 | 5.3 MEDIUM | baserCMS 邮件表单自动回复可指定多收件人漏洞 |
| CVE-2026-115480 | 5.3 MEDIUM | baserCMS 邮件表单绕过图片验证码漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-114623
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