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CVE-2026-54614— DebugKit: MailPreview contains unsafe reflection

Quick assessment

Affected
cakephp debug_kit
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

DebugKit 为 CakePHP 应用提供调试工具栏。在 4.10.3 和 5.2.4 之前，位于 的 DebugKit 邮件预览功能在 方法中接受由路由控制的 值，并将 解析出的类名直接传入构造函数执行，而未拒绝命名空间分隔符，也未验证该类是否继承自 。当调试模式启用且请求主机名为本地或已在允许列表中时，能够访问 DebugKit 的攻击者可以通过 mail-preview 预览路由选择一个非预期的应用类，从而触发任意构造函数执行，并有限度地泄露应用信息。该问题已在 4.10.3 和 5.2.4 版本中修复。

CVSS 4.3 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
cakephp debug_kit < 4.10.3 affected
>= 5.0.0, < 5.2.4 affected
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I. Basic Information for CVE-2026-54614

Vulnerability Information
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Vulnerability Title
DebugKit: MailPreview contains unsafe reflection
Source: CVE Program / CVE List V5
Vulnerability Description
DebugKit provides a debugging toolbar for CakePHP applications. Prior to 4.10.3 and 5.2.4, the DebugKit MailPreview feature in src/Controller/MailPreviewController.php accepts a route-controlled previewName value in findPreview and passes the resolved class from App::className() to constructor execution without rejecting namespace separators or verifying that the class extends DebugKit\Mailer\MailPreview. An attacker able to access DebugKit while debug mode is enabled and the request hostname is local or allowlisted can select an unintended application class through the mail-preview preview route, resulting in arbitrary constructor execution and limited disclosure of application information. This issue is fixed in versions 4.10.3 and 5.2.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用外部可控制的输入来选择类或代码(不安全的反射)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
cakephp debug_kit < 4.10.3 -

II. Public POCs for CVE-2026-54614

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III. Intelligence Information for CVE-2026-54614

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Patches & Fixes for CVE-2026-54614 (3)

Vendor Advisories for CVE-2026-54614 (1)

Vendor Pages for CVE-2026-54614 (2)

IV. Related Vulnerabilities

Same vendor: cakephp
Same weakness: CWE-470

V. Comments for CVE-2026-54614

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