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CVE-2021-4302

Estado: ModificadaMedia (6.1)—

A vulnerability was found in slackero phpwcms up to 1.9.26. It has been classified as problematic. This affects an unknown part of the component SVG File Handler. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. Upgrading to version 1.9.27 is able to address this issue. The patch is named b39db9c7ad3800f319195ff0e26a0981395b1c54. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-217419.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Phpwcms — Phpwcms

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-4302",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-4302",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-10T13:39:35.526988Z"
        }
      }
    ],
    "cvssMetricV2": [
      {
        "type": "Secondary",
        "source": "cna@vuldb.com",
        "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
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cna@vuldb.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 3.5,
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.1
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.1,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cna@vuldb.com",
      "affectedData": [
        {
          "vendor": "slackero",
          "modules": [
            "SVG File Handler"
          ],
          "product": "phpwcms",
          "versions": [
            {
              "status": "affected",
              "version": "1.9.0"
            },
            {
              "status": "affected",
              "version": "1.9.1"
            },
            {
              "status": "affected",
              "version": "1.9.2"
            },
            {
              "status": "affected",
              "version": "1.9.3"
            },
            {
              "status": "affected",
              "version": "1.9.4"
            },
            {
              "status": "affected",
              "version": "1.9.5"
            },
            {
              "status": "affected",
              "version": "1.9.6"
            },
            {
              "status": "affected",
              "version": "1.9.7"
            },
            {
              "status": "affected",
              "version": "1.9.8"
            },
            {
              "status": "affected",
              "version": "1.9.9"
            },
            {
              "status": "affected",
              "version": "1.9.10"
            },
            {
              "status": "affected",
              "version": "1.9.11"
            },
            {
              "status": "affected",
              "version": "1.9.12"
            },
            {
              "status": "affected",
              "version": "1.9.13"
            },
            {
              "status": "affected",
              "version": "1.9.14"
            },
            {
              "status": "affected",
              "version": "1.9.15"
            },
            {
              "status": "affected",
              "version": "1.9.16"
            },
            {
              "status": "affected",
              "version": "1.9.17"
            },
            {
              "status": "affected",
              "version": "1.9.18"
            },
            {
              "status": "affected",
              "version": "1.9.19"
            },
            {
              "status": "affected",
              "version": "1.9.20"
            },
            {
              "status": "affected",
              "version": "1.9.21"
            },
            {
              "status": "affected",
              "version": "1.9.22"
            },
            {
              "status": "affected",
              "version": "1.9.23"
            },
            {
              "status": "affected",
              "version": "1.9.24"
            },
            {
              "status": "affected",
              "version": "1.9.25"
            },
            {
              "status": "affected",
              "version": "1.9.26"
            }
          ]
        }
      ]
    }
  ],
  "published": "2023-01-04T22:15:09.000",
  "references": [
    {
      "url": "https://github.com/slackero/phpwcms/commit/b39db9c7ad3800f319195ff0e26a0981395b1c54",
      "tags": [
        "Patch"
      ],
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://github.com/slackero/phpwcms/releases/tag/v1.9.27",
      "tags": [
        "Release Notes"
      ],
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/?ctiid.217419",
      "tags": [
        "Permissions Required",
        "Third Party Advisory"
      ],
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/?id.217419",
      "tags": [
        "Permissions Required",
        "Third Party Advisory"
      ],
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://github.com/slackero/phpwcms/commit/b39db9c7ad3800f319195ff0e26a0981395b1c54",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/slackero/phpwcms/releases/tag/v1.9.27",
      "tags": [
        "Release Notes"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://vuldb.com/?ctiid.217419",
      "tags": [
        "Permissions Required",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://vuldb.com/?id.217419",
      "tags": [
        "Permissions Required",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cna@vuldb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability was found in slackero phpwcms up to 1.9.26. It has been classified as problematic. This affects an unknown part of the component SVG File Handler. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. Upgrading to version 1.9.27 is able to address this issue. The patch is named b39db9c7ad3800f319195ff0e26a0981395b1c54. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-217419."
    },
    {
      "lang": "es",
      "value": "Se encontró una vulnerabilidad en slackero phpwcms hasta 1.9.26. Ha sido clasificada como problemática. Una parte desconocida del componente SVG File Handler afecta a una parte desconocida. La manipulación conduce a cross-site scripting. Es posible iniciar el ataque de forma remota. La actualización a la versión 1.9.27 puede solucionar este problema. El parche se llama b39db9c7ad3800f319195ff0e26a0981395b1c54. Se recomienda actualizar el componente afectado. El identificador asociado de esta vulnerabilidad es VDB-217419."
    }
  ],
  "lastModified": "2026-06-17T04:19:27.637",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:phpwcms:phpwcms:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C863174F-8801-4135-B74F-CEFF6D5140C3",
              "versionEndExcluding": "1.9.27"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cna@vuldb.com"
}