Security advisory

{
  "id": "a78b344e8477435dd151d608a361eaf036a1edb0b284dee0b2f52fb9fc932c50",
  "url": "https://osv.dev/vulnerability/CVE-2017-5542",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-5542",
    "summary": "Cross-site scripting (XSS) vulnerability in template/usererror.missing_extension.php in Symphony CMS before 2.6.10 allows remote attackers to inject arbitrary web script or HTML via the existing-folder parameter.",
    "evidence": "osv:CVE-2017-5542",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2017-5542",
      "aliases": [
        "CVE-2017-5542"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/symphonycms/symphonycms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "aa8fcd2deabce0b338f42ba1109117b075f20247"
                },
                {
                  "fixed": "96e919cb17f983e998e098e498fa230fa3344e34"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:getsymphony:symphony:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.6.9"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "96e919cb17f983e998e098e498fa230fa3344e34"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "2.6.10"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.6.9",
            "2.6.8",
            "2.6.7",
            "2.6.6",
            "2.6.4",
            "2.6.5",
            "2.6.3",
            "2.6.2",
            "2.6.1",
            "2.6.0",
            "2.6.0-rc.1",
            "2.5.2",
            "2.6.0-beta.2",
            "2.6.0-beta.1",
            "2.5.2-rc.1",
            "2.5.2-beta.1",
            "2.5.1",
            "2.5.0",
            "2.4",
            "2.4RC2",
            "2.4RC1",
            "2.4beta3",
            "2.4beta1",
            "2.3.6",
            "2.3.5",
            "2.3.5RC1",
            "2.3.5beta1",
            "2.3.4",
            "2.3.4RC1",
            "2.3.4beta2",
            "2.3.3",
            "2.3.4beta1",
            "2.3.3RC3",
            "2.3.3RC2",
            "2.3.3RC1",
            "2.3.3beta3",
            "2.3.3beta2",
            "2.3.3beta1",
            "2.3.2",
            "2.3.2RC2",
            "2.2.5",
            "2.3.2RC1",
            "2.3.2beta2",
            "2.3.2beta1",
            "2.3.1",
            "2.3.1RC3",
            "2.3",
            "2.3.1RC2",
            "2.3.1RC1",
            "2.3.1beta2",
            "2.3.1beta1",
            "2.3RC4",
            "2.3RC3",
            "2.3RC2",
            "2.3beta3",
            "2.3beta2",
            "2.3beta1",
            "2.2.4",
            "2.2.3",
            "2.2.2",
            "2.1.2",
            "2.2",
            "2.0.7",
            "2.0.7RC2",
            "2.0.7beta",
            "2.0.7RC1",
            "2.0.4",
            "2.0.2",
            "2.0.1",
            "2.0",
            "rev5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-5542.json"
          }
        }
      ],
      "modified": "2026-10-20T10:49:02.368379003Z",
      "provider": "osv",
      "references": [
        "https://github.com/symphonycms/symphony-2/issues/2639",
        "https://github.com/symphonycms/symphony-2/releases/tag/2.6.10"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-5542",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 380430,
  "published_at": "2017-01-20T08:59:00.517+00:00"
}