CVE-2007-4143

Status: ModifiedMedium (4)—Exploit

Severity4Medium · CVSS 2.0

Exploitation probability4.16 %higher than 91% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitAvailablePublished on Exploit-DB

user.php in the Billing Control Panel in phpCoupon allows remote authenticated users to obtain Premium Member status, and possibly acquire free coupons, via a modified URL containing a certain billing parameter and REQ=auth, status=success, and custom=upgrade substrings, possibly related to PayPal transactions.

CVSS

Base score: 4
Version: 2.0
Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 4.16 %
Percentile among all scored CVEs: 91
Score date: 10/23/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · phpCoupon - Remote Payment Bypass (7/28/2007)

Affected technologies (1)

Phpcoupon — Phpcoupon

CWEs

NVD-CWE-Other

References

Show 8 references

Raw JSON (NVD)

Show

{
  "id": "CVE-2007-4143",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2007-08-03T20:17:00.000",
  "references": [
    {
      "url": "http://securityreason.com/securityalert/2958",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/474936/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/25116",
      "tags": [
        "Exploit"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/35664",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://securityreason.com/securityalert/2958",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/474936/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/25116",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/35664",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "user.php in the Billing Control Panel in phpCoupon allows remote authenticated users to obtain Premium Member status, and possibly acquire free coupons, via a modified URL containing a certain billing parameter and REQ=auth, status=success, and custom=upgrade substrings, possibly related to PayPal transactions."
    },
    {
      "lang": "es",
      "value": "El user.php del Billing Control Panel en el phpCoupon permite a usuarios remotos autenticados obtener el estado de Premium Member y, posiblemente, obtener cupones gratis, a través de un URL modificado que contiene ciertos parámetros de facturación y subcadenas REQ=auth, status=success y custom=upgrade, posiblemente relacionadas con las transacciones PayPal."
    }
  ],
  "lastModified": "2026-06-16T22:43:28.960",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:phpcoupon:phpcoupon:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D195A92B-4385-4085-B853-7035BF73338F"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}