Security advisory

{
  "id": "50d37ef9b1a525aded07b84906a7711b0d93d8be56dc2678dc19dcd6096028af",
  "url": "https://osv.dev/vulnerability/CVE-2021-4302",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-4302",
    "summary": "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.",
    "evidence": "osv:CVE-2021-4302",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-4302",
      "aliases": [
        "CVE-2021-4302"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/slackero/phpwcms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0dd501ca88fd603ca1f1f88a01ed958f0ab57bde"
                },
                {
                  "fixed": "b39db9c7ad3800f319195ff0e26a0981395b1c54"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:phpwcms:phpwcms:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.9.27"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "b39db9c7ad3800f319195ff0e26a0981395b1c54"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "0dd501ca88fd603ca1f1f88a01ed958f0ab57bde"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v1.9.27"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.9.26",
            "v1.9.25",
            "v1.9.24",
            "v1.9.23",
            "v1.9.22",
            "v1.9.21",
            "v1.9.20",
            "v1.9.19",
            "v1.9.18",
            "v1.9.17",
            "v1.9.16",
            "v1.9.15",
            "v1.9.13",
            "v1.9.12",
            "v1.9.11",
            "v1.9.8",
            "v1.9.7",
            "phpwcms-1.9.6",
            "phpwcms-1.9.5",
            "phpwcms-1.9.3",
            "phpwcms-1.9.2",
            "phpwcms-1.9.0-rc.2",
            "phpwcms-1.9.0-rc.1",
            "phpwmcs-1.9.0-beta.8",
            "phpwcms-1.9.0-beta.7",
            "phpwcms-1.9.0-beta.6",
            "phpwcms-1.9.0-beta.5",
            "phpwcms-1.9.0-beta.4",
            "phpwcms-1.8.4",
            "phpwcms-1.8.3",
            "phpwcms-1.8.2",
            "phpwcms-1.8.1",
            "phpwcms-1.8.0",
            "phpwcms-1.8.0-RC2",
            "phpwcms-1.8.0-RC1",
            "phpwcms-1.7.9",
            "phpwcms-1.7.7",
            "phpwcms-1.7.6",
            "phpwcms-1.7.5",
            "phpwcms-1.7.4",
            "phpwcms-1.7.3",
            "phpwcms-1.7.2",
            "phpwcms-1.7.1",
            "phpwcms-1.7.0",
            "phpwcms-1.6.531",
            "phpwcms-1.6.529"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-4302.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:07.036011638Z",
      "provider": "osv",
      "references": [
        "https://github.com/slackero/phpwcms/releases/tag/v1.9.27",
        "https://vuldb.com/?ctiid.217419",
        "https://vuldb.com/?id.217419",
        "https://github.com/slackero/phpwcms/commit/b39db9c7ad3800f319195ff0e26a0981395b1c54"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-4302",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384874,
  "published_at": "2023-01-04T22:15:09+00:00"
}