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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.

CakePHP DebugKit是CakePHP团队的一款调试工具包。 CakePHP DebugKit 4.10.3之前版本和5.2.4之前版本存在安全漏洞，该漏洞源于src/Controller/MailPreviewController.php文件中的MailPreview功能接受路由控制的previewName值，未拒绝命名空间分隔符或验证类继承，导致攻击者可以执行任意构造函数并泄露有限应用信息。

CVSS 4.3 · Medium EPSS 0.54% · P44

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
Vulnerability Title
CakePHP DebugKit 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CakePHP DebugKit是CakePHP团队的一款调试工具包。 CakePHP DebugKit 4.10.3之前版本和5.2.4之前版本存在安全漏洞，该漏洞源于src/Controller/MailPreviewController.php文件中的MailPreview功能接受路由控制的previewName值，未拒绝命名空间分隔符或验证类继承，导致攻击者可以执行任意构造函数并泄露有限应用信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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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