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CVE-2026-77999 Joomla Extension - j2commerce.com - Unauthenticated PayPal callback forgery leading to order confirmation fraud in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6

🗓️ 03 Sep 2026 11:58:00Reported by JoomlaType 
cvelist
 cvelist
🔗 www.cve.org👁 8 Views

Unauthenticated PayPal callback forgery in J2Store enables order confirmation fraud without payment.

Related
Affected
Refs
[
  {
    "defaultStatus": "unaffected",
    "product": "J2Store extension for Joomla",
    "vendor": "j2commerce.com",
    "versions": [
      {
        "status": "affected",
        "version": "1.0.0-3.3.21"
      },
      {
        "status": "affected",
        "version": "4.0.0-4.0.21"
      },
      {
        "status": "affected",
        "version": "4.1.0-4.1.6"
      }
    ]
  }
]
SourceLink
j2commercewww.j2commerce.com/

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