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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-25768

Contao before 4.4.52, 4.9.x before 4.9.6, and 4.10.x before 4.10.1 have Improper Input Validation. It is possible to inject insert tags in front end forms which will be replaced when the page is rendered.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2020-25768
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 06:42 UTC · Revision 1

Source evidence

CVE-2020-25768

core-osv · Original source

Published 7 Oct 2020, 21:15 UTC

Contao before 4.4.52, 4.9.x before 4.9.6, and 4.10.x before 4.10.1 have Improper Input Validation. It is possible to inject insert tags in front end forms which will be replaced when the page is rendered.

osv:CVE-2020-25768
Complete source record
{
  "id": "55fac760910f89b6eec035f0669af452bf023eecf67c01c9de820d51a1cc2dd5",
  "url": "https://osv.dev/vulnerability/CVE-2020-25768",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-25768",
    "summary": "Contao before 4.4.52, 4.9.x before 4.9.6, and 4.10.x before 4.10.1 have Improper Input Validation. It is possible to inject insert tags in front end forms which will be replaced when the page is rendered.",
    "evidence": "osv:CVE-2020-25768",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-25768",
      "aliases": [
        "CVE-2020-25768",
        "GHSA-f7wm-x4gw-6m23"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/contao/contao",
              "type": "GIT",
              "events": [
                {
                  "introduced": "84b2fe637d5ead531f117f26b48d1b9de8df4074"
                },
                {
                  "fixed": "5552147901fac8affad51662a1bf75a730368eb1"
                },
                {
                  "introduced": "23899ad910aa057494cce4517015aa31faa37f11"
                },
                {
                  "fixed": "59dd103ad9c1e054fd19737306ab94bcdc87d03f"
                },
                {
                  "introduced": "5a25b1d689ffde95a00427bdfde03695a2c645c3"
                },
                {
                  "fixed": "ef6296b34581de1c617369b1f61ad3f6a70a4b5c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:contao:contao:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.0"
                      },
                      {
                        "fixed": "4.4.52"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:contao:contao:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.9.0"
                      },
                      {
                        "fixed": "4.9.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:contao:contao:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.10.0"
                      },
                      {
                        "fixed": "4.10.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.10.0",
            "4.9.5",
            "4.9.4",
            "4.9.3",
            "4.9.2",
            "4.9.1",
            "4.9.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-25768.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:43.405747636Z",
      "provider": "osv",
      "references": [
        "https://community.contao.org/en/forumdisplay.php?4-Announcements",
        "https://contao.org/en/security-advisories/insert-tag-injection-in-forms.html"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-25768",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435609,
  "published_at": "2020-10-07T21:15:14.963+00:00"
}