CVE-2026-54614
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
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
CWEs
CWE-470
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.