CVE-2026-54614
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…
Does this matter?
Lower severity and a low EPSS score (0.31%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.31% probability · 24th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-470
- Source
- security-advisories@github.com
References
- https://github.com/cakephp/debug_kit/commit/7c4d85e984c2334b0f50cd02578a927ff9649e13
- https://github.com/cakephp/debug_kit/commit/c8a2a9e07d56a5e212d95f6947f370f3b5e6eed6
- https://github.com/cakephp/debug_kit/pull/1078
- https://github.com/cakephp/debug_kit/releases/tag/4.10.3
- https://github.com/cakephp/debug_kit/releases/tag/5.2.4
- https://github.com/cakephp/debug_kit/security/advisories/GHSA-p46m-g734-vpc4
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.