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CVE-2026-45754 Symfony: Mailjet Mailer Webhook Parser Never Verifies the Configured Secret — Unauthenticated Webhook Event Injection

🗓️ 14 Jul 2026 18:54:24Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 6.4.40, 7.4.12, and 8.0.12, the Mailjet mailer bridge and LOX24 notifier bridge webhook parsers received configured webhook secrets but did ...

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Affected
Refs
[
  {
    "vendor": "symfony",
    "product": "symfony",
    "versions": [
      {
        "version": ">= 6.4.0, < 6.4.40",
        "status": "affected"
      },
      {
        "version": ">= 7.0.0-BETA1, < 7.4.12",
        "status": "affected"
      },
      {
        "version": ">= 8.0.0-BETA1, < 8.0.12",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "symfony",
    "product": "lox24-notifier",
    "versions": [
      {
        "version": ">= 7.1.0-BETA1, < 7.4.12",
        "status": "affected"
      },
      {
        "version": ">= 8.0.0-BETA1, < 8.0.12",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "symfony",
    "product": "mailjet-mailer",
    "versions": [
      {
        "version": ">= 6.4.0, < 6.4.40",
        "status": "affected"
      },
      {
        "version": ">= 7.0.0-BETA1, < 7.4.12",
        "status": "affected"
      },
      {
        "version": ">= 8.0.0-BETA1, < 8.0.12",
        "status": "affected"
      }
    ]
  }
]

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14 Jul 2026 18:54Current
CVSS 46.9
EPSS0.00103
3