CVE-2026-126543

{
  "etk_id": "ETK-2026-4136",
  "cve_id": "CVE-2026-126543",
  "display_id": "CVE-2026-126543",
  "ghsa_id": "GHSA-r4j2-2784-v3cx",
  "euvd_id": "EUVD-2026-123068",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Improper payment verification in WWBN AVideo",
  "summary": "WWBN AVideo through version 29.7.1 does not adequately associate PayPalYPT payment notifications with the configured merchant account. An unauthenticated attacker who controls valid recurring-payment notifications may obtain wallet credit for a chosen user account.",
  "mitigation": "Disable the PayPalYPT payment-notification and wallet-credit functionality until a corrected release is identified, or restrict access to the notification endpoint where operations permit. Review wallet credits and payment notifications for transactions not associated with your merchant account.",
  "vendor": "WWBN",
  "product": "AVideo",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 29.7.1"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "AVideo",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 27.6115831,
  "t0_at": "2026-11-11T00:58:54.710000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-11T04:43:20.111119+00:00",
      "days": 0.15584954998842593,
      "is_lower_bound": false,
      "measured_at": "2026-11-11T00:58:54.710000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-11T00:58:54.710000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-11T00:58:54.710000+00:00",
      "url": "https://github.com/advisories/GHSA-r4j2-2784-v3cx"
    }
  }
}