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CVE-2026-9189 Contact Form 7 – PayPal & Stripe Add-on <= 2.4.9 - Unauthenticated Payment Bypass via Insufficient Verification of Data Authenticity via PayPal IPN Handler ('invoice'/'mc_gross' Verification)

🗓️ 29 May 2026 08:28:24Reported by WordfenceType 
cvelist
 cvelist
🔗 www.cve.org👁 41 Views

Unauthenticated bypass of payment verification in Contact Form 7 PayPal & Stripe Add-on <=2.4.9 using crafted IPN to mark orders as paid.

Related
Affected
Refs
[
  {
    "vendor": "scottpaterson",
    "product": "Contact Form 7 – PayPal & Stripe Add-on",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "lessThanOrEqual": "2.4.9",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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