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CVE-2008-4304

Status: ModifiedHigh (10)—
Severity10High · CVSS 2.0
Exploitation probability3.01 %higher than 87% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

general/login.php in phpCollab 2.5 rc3 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in unspecified input related to the SSL_CLIENT_CERT environment variable. NOTE: in some environments, SSL_CLIENT_CERT always has a base64-encoded string value, which may impose constraints on injection for typical shells.

CVSS

Base score
10
Version
2.0
Vector
AV:N/AC:L/Au:N/C:C/I:C/A:C

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
3.01 %
Percentile among all scored CVEs
87
Score date
10/22/2026

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)

Phpcollab — Phpcollab

CWEs

References

Show 10 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2008-4304",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 10,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": true,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2008-12-23T18:30:03.250",
  "references": [
    {
      "url": "http://bugs.gentoo.org/show_bug.cgi?id=235052",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/33258",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://security.gentoo.org/glsa/glsa-200812-20.xml",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/32964",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/47522",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://bugs.gentoo.org/show_bug.cgi?id=235052",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/33258",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://security.gentoo.org/glsa/glsa-200812-20.xml",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/32964",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/47522",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "general/login.php in phpCollab 2.5 rc3 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in unspecified input related to the SSL_CLIENT_CERT environment variable. NOTE: in some environments, SSL_CLIENT_CERT always has a base64-encoded string value, which may impose constraints on injection for typical shells."
    },
    {
      "lang": "es",
      "value": "general/login.php en phpCollab 2.5 rc3 y anteriores, permiten a atacantes remotos ejecutar comandos arbitrarios a través de metacaracteres shell en entradas no específicas, relacionadas con la variable de entorno SSL_CLIENT_CERT. NOTA, en algunos entornos, SSL_CLIENT_CERT siempre tiene valor de cadena codificado en base 64, lo cual impone limitaciones a la inyección para shells típicas."
    }
  ],
  "lastModified": "2026-06-16T22:57:33.830",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:phpcollab:phpcollab:*:rc3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "306A4BD2-EDA5-4C5C-9EDF-4A30002835C9",
              "versionEndIncluding": "2.5"
            },
            {
              "criteria": "cpe:2.3:a:phpcollab:phpcollab:2.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6FEB4154-4FBA-439C-85B6-02EAAD97DCC2"
            },
            {
              "criteria": "cpe:2.3:a:phpcollab:phpcollab:2.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C2E0172B-98CB-4777-A388-E9B0AB09A655"
            },
            {
              "criteria": "cpe:2.3:a:phpcollab:phpcollab:2.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "82E3645C-2A9B-4F9D-B8FC-EFABB5550706"
            },
            {
              "criteria": "cpe:2.3:a:phpcollab:phpcollab:2.5:beta_4:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D35D5533-5262-4A52-80E2-40A2AAC1F52F"
            },
            {
              "criteria": "cpe:2.3:a:phpcollab:phpcollab:2.5:rc1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A5C6C16C-9DC9-45C6-AA12-8A6B73F018ED"
            },
            {
              "criteria": "cpe:2.3:a:phpcollab:phpcollab:2.5:rc2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8A23D06B-FB8A-42CC-B3B6-F720A2D892EE"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}