CVE-2006-4677

Status: ModifiedHigh (7.5)—

PHP remote file inclusion vulnerability in contrib/yabbse/poc.php in phpopenchat before 3.0.2 allows remote attackers to execute arbitrary PHP code via the sourcedir parameter. NOTE: this issue was disputed by a third-party researcher who stated that the _REQUEST parameters were dynamically unset at the beginning of the file. Another researcher noted, and CVE agrees, that the unset PHP function can be bypassed (CVE-2006-3017). If this issue is due to a vulnerability in PHP, then it should be excluded from CVE

CVSS

Version: 2.0
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Base score: 7.5

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 1.55%
Percentile among all scored CVEs: 74
Score date: 10/8/2026

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).

Affected technologies (1)

Phpopenchat — Phpopenchat

CWEs

NVD-CWE-Other

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2006-4677",
  "cveTags": [
    {
      "tags": [
        "disputed"
      ],
      "sourceIdentifier": "cve@mitre.org"
    }
  ],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": true,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2006-09-11T17:04:00.000",
  "references": [
    {
      "url": "http://phpopenchat.org/index.php",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/445384/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/445522/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/445580/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://phpopenchat.org/index.php",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/445384/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/445522/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/445580/100/0/threaded",
      "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": "PHP remote file inclusion vulnerability in contrib/yabbse/poc.php in phpopenchat before 3.0.2 allows remote attackers to execute arbitrary PHP code via the sourcedir parameter.  NOTE: this issue was disputed by a third-party researcher who stated that the _REQUEST parameters were dynamically unset at the beginning of the file.  Another researcher noted, and CVE agrees, that the unset PHP function can be bypassed (CVE-2006-3017).  If this issue is due to a vulnerability in PHP, then it should be excluded from CVE"
    },
    {
      "lang": "es",
      "value": "** RECHAZADO ** Vulnerabilidad PHP de inclusión remota de archivo en contrib/yabbse/poc.php en phpopenchat anterior a 3.0.2 permite un atacante remoto ejecutar código PHP de su elección a través del parámetro sourcedir. NOTA: este tema fue discutido por una tercera persona investigador que indicó que eran los parámetros del _REQUEST estaba dinámicamente desactivada al principio del archivo.  Otro investigador conocido, y con el que CVE esta de acuerdo, indico que la función PHP desactivada puede evitarse (CVE-2006-3017).  Si este tema es debido a una vulnerabilidad en PHP, entonces  debe ser excluida del CVE."
    }
  ],
  "lastModified": "2026-06-16T22:29:34.580",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:phpopenchat:phpopenchat:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "37C634AB-40CB-4622-95E9-18BAD8811C2C",
              "versionEndIncluding": "3.0.1"
            },
            {
              "criteria": "cpe:2.3:a:phpopenchat:phpopenchat:2.3.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "89F50264-0D15-4545-ADBC-EA5661353D8E"
            },
            {
              "criteria": "cpe:2.3:a:phpopenchat:phpopenchat:3.0.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8893B82A-AA71-45BA-8C50-7D8085C407FD"
            }
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          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}