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Vulnerability DatabaseCVE-2026-39366

CVE-2026-39366: 
PHP vulnerability analysis and mitigation

WWBN AVideo is an open source video platform. In versions 26.0 and prior, the PayPal IPN v1 handler at plugin/PayPalYPT/ipn.php lacks transaction deduplication, allowing an attacker to replay a single legitimate IPN notification to repeatedly inflate their wallet balance and renew subscriptions. The newer ipnV2.php and webhook.php handlers correctly deduplicate via PayPalYPT_log entries, but the v1 handler was never updated and remains actively referenced as the notify_url for billing plans.

Source: NVD

Related PHP vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

GHSA-8q4h-8crm-5cvcHIGH8.9
  • PHPPHP
  • studio-42/elfinder
NoYesApr 17, 2026
CVE-2026-41143HIGH8.8
  • PHPPHP
  • yeswiki/yeswiki
NoYesApr 18, 2026
GHSA-qrr6-mg7r-m243HIGH7.8
  • PHPPHP
  • phpunit/phpunit
NoYesApr 18, 2026
CVE-2026-40479MEDIUM5.4
  • PHPPHP
  • kimai/kimai
NoYesApr 17, 2026
CVE-2026-40486MEDIUM4.3
  • PHPPHP
  • kimai/kimai
NoYesApr 17, 2026

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