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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👁 69 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
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-9189
29 May 202608:28
–attackerkb
circl
Circl
CVE-2026-9189
17 Jun 202623:13
–circl
cnnvd
CNNVD
WordPress plugin Contact Form 7 – PayPal & Stripe Add-on 数据伪造问题漏洞
29 May 202600:00
–cnnvd
cve
CVE
CVE-2026-9189
29 May 202608:28
–cve
euvd
EUVD
EUVD-2026-33265
29 May 202608:28
–euvd
nvd
NVD
CVE-2026-9189
29 May 202609:16
–nvd
patchstack
Patchstack
WordPress Contact Form 7 – PayPal & Stripe Add-on plugin <= 2.4.9 - Unauthenticated Payment Bypass vulnerability
28 May 202619:54
–patchstack
ptsecurity
Positive Technologies
PT-2026-44772
29 May 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-9189: Insufficient Verification of Data Authenticity
29 May 202600:00
–rapid7
redhatcve
RedhatCVE
CVE-2026-9189
5 Jun 202619:33
–redhatcve
Rows per page
[
  {
    "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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