Every CVE Search/ Get API key

CVE-2026-54614

DebugKit: MailPreview contains unsafe reflection

4.3 MediumFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
None
Availability
None

Exploit likelihood

0.54%Up 0.2 points since Aug 27, 2026
90%50%10%1%

What each source reports

CVE List Score used 4.3

DebugKit: MailPreview contains unsafe reflection

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.

Record
CVE-2026-54614
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-470
Updated
2026-11-02
EUVDEUVD-2026-66597 4.3

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.

Record
EUVD-2026-66597
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-p46m-g734-vpc4 4.3

cakephp/debug_kit: MailPreview contains unsafe reflection

Impact

The MailPreview feature of debugkit is vulnerable to arbitrary constructor execution. For an application to be vulnerable the following conditions must be true:

  1. debug mode must be enabled.
  2. The hostname must match a 'local' domain or be in an allowlist.

Patches

5.2.4 and 4.10.3 contain patches for this issue.

Workarounds

Ensure that debugkit is only part of your development dependencies, and that debug mode is disabled in production environments.

Record
GHSA-p46m-g734-vpc4
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-470
Updated
2026-11-02
NVD 4.3

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.

Record
CVE-2026-54614
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-470
Updated
2026-11-02
OSV 4.3

DebugKit: MailPreview contains unsafe reflection

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.

Record
CVE-2026-54614
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-470
Updated
2026-11-02
OSVGHSA-p46m-g734-vpc4 4.3

cakephp/debug_kit: MailPreview contains unsafe reflection

Impact

The MailPreview feature of debugkit is vulnerable to arbitrary constructor execution. For an application to be vulnerable the following conditions must be true:

  1. debug mode must be enabled.
  2. The hostname must match a 'local' domain or be in an allowlist.

Patches

5.2.4 and 4.10.3 contain patches for this issue.

Workarounds

Ensure that debugkit is only part of your development dependencies, and that debug mode is disabled in production environments.

Record
GHSA-p46m-g734-vpc4
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-470
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
cakephp/debug_kit
Packagist
 before 4.10.3
4.10.3
cakephp/debug_kit
Packagist
 5.0.0 up to 5.2.4
5.2.4
cakephp/debug_kit
Packagist
 before 4.10.3, plus listed versions
2.2.12.2.22.2.32.2.42.2.5
Show 45 moreShow less
2.2.62.2.72.2.82.2.93.0.03.0.0-beta3.0.0-beta23.0.13.0.23.1.03.1.13.1.103.1.23.1.33.1.43.1.53.1.63.1.73.1.83.1.93.10.03.10.13.10.23.10.33.10.43.11.03.11.13.11.23.11.33.11.43.11.53.11.63.12.03.13.03.14.03.14.13.14.23.15.03.15.13.15.23.15.33.16.03.16.13.16.23.16.3
4.10.3
cakephp/debug_kit
Packagist
 5.0.0 up to 5.2.4, plus listed versions
5.0.15.0.25.0.35.0.45.0.5
Show 11 moreShow less
5.0.65.1.05.1.15.1.25.1.35.1.45.1.55.2.05.2.15.2.25.2.3
5.2.4

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-54614 is a medium vulnerability (CVSS 4.3) in Cakephp Debug Kit, published August 26, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.54%, the 45th percentile. Fixed in cakephp/debug_kit 4.10.3.

References

Show 4 moreShow less
This page doesn't list everything

Left out here: 97 versions. The JSON record has them.

Pages All vulnerabilities Browse Docs Sources Guide Get API key
MoveEnter Open