CVE-2026-45754: Mailjet Mailer and LOX24 Notifier Webhook Parsers Never Verify the Configured Secret: Unauthenticated Webhook Event Injection

PKSA-swxr-w76k-fd2b CVE-2026-45754

Affected package: symfony/mailjet-mailer

Affected version: >=6.4.0,<6.4.40|>=7.0.0,<7.1.0|>=7.1.0,<7.2.0|>=7.2.0,<7.3.0|>=7.3.0,<7.4.0|>=7.4.0,<7.4.12|>=8.0.0,<8.0.12

Reported by:
FriendsOfPHP/security-advisories