CVE-2026-121636

Full vulnerability record from the local CVENow database.

Description

The Quick Event Manager WordPress plugin before 9.19 does not verify the authenticity of PayPal payment notifications before marking event registrations as paid, which could allow unauthenticated attackers to mark registrations as paid without making a payment.

Severity

MEDIUM

CVSS score

5.3 (v3.1)

Vulnerability status

Received

Source identifier

[email protected]

Published

2026-11-06 08:17:20.103000

Last modified

2026-11-06 08:17:20.103000

View original CVE JSON

{
  "id": "CVE-2026-121636",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-06T08:17:20.103",
  "lastModified": "2026-11-06T08:17:20.103",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Quick Event Manager WordPress plugin before 9.19 does not verify the authenticity of PayPal payment notifications before marking event registrations as paid, which could allow unauthenticated attackers to mark registrations as paid without making a payment."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Unknown",
          "product": "Quick Event Manager",
          "defaultStatus": "unaffected",
          "collectionURL": "https://wordpress.org/plugins",
          "versions": [
            {
              "version": "9.9.5",
              "lessThan": "9.19",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4
      }
    ]
  },
  "references": [
    {
      "url": "https://wpscan.com/vulnerability/04b181e1-639c-476f-b66b-2a073bf36829/",
      "source": "[email protected]"
    }
  ]
}