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GHSA-747v-52c4-8vj8low3.1

Contao: Unencoded insert tags in the frontend

Check your stack

The advisory, in context

Impact

It is possible to inject insert tags via the form generator if the submitted form data is output on the page in a specific way.

Patches

Update to Contao 4.13.40 or 5.3.4.

Workarounds

Do not output the submitted form data on the website.

References

https://contao.org/en/security-advisories/insert-tag-injection-via-the-form-generator

For more information

If you have any questions or comments about this advisory, open an issue in contao/contao.

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

Ecosystem versions

From 4.0.0 before 4.13.40

Fixed in 4.13.40

277 explicitly affected versions

4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.1.0, 4.1.0-RC1, 4.1.0-beta1, 4.1.1, 4.1.2, 4.1.3, 4.10.0, 4.10.0-RC1, 4.10.0-RC2, 4.10.0-RC3, 4.10.0-RC4, 4.10.1, 4.10.2, 4.10.3, 4.10.4, 4.10.5, 4.10.6, 4.10.7, 4.11.0, 4.11.0-RC1, 4.11.0-RC2, 4.11.1, 4.11.2, 4.11.3, 4.11.4, 4.11.5, 4.11.6, 4.11.7, 4.11.8, 4.11.9, 4.12.0, 4.12.0-RC1, 4.12.0-RC2, 4.12.0-RC3, 4.12.1, 4.12.2, 4.12.3, 4.12.4, 4.12.5, 4.12.6, 4.12.7, 4.13.0, 4.13.0-RC1, 4.13.0-RC2, 4.13.0-RC3, 4.13.1, 4.13.10, 4.13.11, 4.13.12, 4.13.13, 4.13.14, 4.13.15, 4.13.16, 4.13.17, 4.13.18, 4.13.19, 4.13.2, 4.13.20, 4.13.21, 4.13.22, 4.13.23, 4.13.24, 4.13.25, 4.13.26, 4.13.27, 4.13.28, 4.13.29, 4.13.3, 4.13.30, 4.13.31, 4.13.32, 4.13.33, 4.13.34, 4.13.35, 4.13.36, 4.13.37, 4.13.38, 4.13.39, 4.13.4, 4.13.5, 4.13.6, 4.13.7, 4.13.8, 4.13.9, 4.2.0, 4.2.0-RC1, 4.2.0-beta1, 4.2.1, 4.2.2, 4.2.3, 4.2.4, 4.2.5, 4.3.0, 4.3.0-RC1, 4.3.1, 4.3.10, 4.3.11, 4.3.2, 4.3.3, 4.3.4, 4.3.5, 4.3.6, 4.3.7, 4.3.8, 4.3.9, 4.4.0, 4.4.0-RC1, 4.4.0-RC2, 4.4.0-beta1, 4.4.1, 4.4.10, 4.4.11, 4.4.12, 4.4.13, 4.4.14, 4.4.15, 4.4.16, 4.4.17, 4.4.18, 4.4.19, 4.4.2, 4.4.20, 4.4.21, 4.4.22, 4.4.23, 4.4.24, 4.4.25, 4.4.26, 4.4.27, 4.4.28, 4.4.29, 4.4.3, 4.4.30, 4.4.31, 4.4.32, 4.4.33, 4.4.34, 4.4.35, 4.4.36, 4.4.37, 4.4.38, 4.4.39, 4.4.4, 4.4.40, 4.4.41, 4.4.42, 4.4.43, 4.4.44, 4.4.45, 4.4.46, 4.4.47, 4.4.48, 4.4.49, 4.4.5, 4.4.50, 4.4.51, 4.4.52, 4.4.53, 4.4.54, 4.4.55, 4.4.56, 4.4.57, 4.4.6, 4.4.7, 4.4.8, 4.4.9, 4.5.0, 4.5.0-RC1, 4.5.0-RC2, 4.5.0-beta1, 4.5.0-beta2, 4.5.0-beta3, 4.5.1, 4.5.10, 4.5.11, 4.5.12, 4.5.13, 4.5.14, 4.5.2, 4.5.3, 4.5.4, 4.5.5, 4.5.6, 4.5.7, 4.5.8, 4.5.9, 4.6.0, 4.6.0-RC1, 4.6.0-RC2, 4.6.0-RC3, 4.6.1, 4.6.10, 4.6.11, 4.6.12, 4.6.13, 4.6.14, 4.6.2, 4.6.3, 4.6.4, 4.6.5, 4.6.6, 4.6.7, 4.6.8, 4.6.9, 4.7.0, 4.7.0-RC1, 4.7.0-RC2, 4.7.0-RC3, 4.7.0-RC4, 4.7.1, 4.7.2, 4.7.3, 4.7.4, 4.7.5, 4.7.6, 4.7.7, 4.8.0, 4.8.0-RC1, 4.8.0-RC2, 4.8.1, 4.8.2, 4.8.3, 4.8.4, 4.8.5, 4.8.6, 4.8.7, 4.8.8, 4.9.0, 4.9.0-RC1, 4.9.0-RC2, 4.9.1, 4.9.10, 4.9.11, 4.9.12, 4.9.13, 4.9.14, 4.9.15, 4.9.16, 4.9.17, 4.9.18, 4.9.19, 4.9.2, 4.9.20, 4.9.21, 4.9.22, 4.9.23, 4.9.24, 4.9.25, 4.9.26, 4.9.27, 4.9.28, 4.9.29, 4.9.3, 4.9.30, 4.9.31, 4.9.32, 4.9.33, 4.9.34, 4.9.35, 4.9.36, 4.9.37, 4.9.38, 4.9.39, 4.9.4, 4.9.40, 4.9.41, 4.9.42, 4.9.5, 4.9.6, 4.9.7, 4.9.8, 4.9.9

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "4.0.0"
        },
        {
          "fixed": "4.13.40"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "4.0.0",
    "4.0.1",
    "4.0.2",
    "4.0.3",
    "4.0.4",
    "4.1.0",
    "4.1.0-RC1",
    "4.1.0-beta1",
    "4.1.1",
    "4.1.2",
    "4.1.3",
    "4.10.0",
    "4.10.0-RC1",
    "4.10.0-RC2",
    "4.10.0-RC3",
    "4.10.0-RC4",
    "4.10.1",
    "4.10.2",
    "4.10.3",
    "4.10.4",
    "4.10.5",
    "4.10.6",
    "4.10.7",
    "4.11.0",
    "4.11.0-RC1",
    "4.11.0-RC2",
    "4.11.1",
    "4.11.2",
    "4.11.3",
    "4.11.4",
    "4.11.5",
    "4.11.6",
    "4.11.7",
    "4.11.8",
    "4.11.9",
    "4.12.0",
    "4.12.0-RC1",
    "4.12.0-RC2",
    "4.12.0-RC3",
    "4.12.1",
    "4.12.2",
    "4.12.3",
    "4.12.4",
    "4.12.5",
    "4.12.6",
    "4.12.7",
    "4.13.0",
    "4.13.0-RC1",
    "4.13.0-RC2",
    "4.13.0-RC3",
    "4.13.1",
    "4.13.10",
    "4.13.11",
    "4.13.12",
    "4.13.13",
    "4.13.14",
    "4.13.15",
    "4.13.16",
    "4.13.17",
    "4.13.18",
    "4.13.19",
    "4.13.2",
    "4.13.20",
    "4.13.21",
    "4.13.22",
    "4.13.23",
    "4.13.24",
    "4.13.25",
    "4.13.26",
    "4.13.27",
    "4.13.28",
    "4.13.29",
    "4.13.3",
    "4.13.30",
    "4.13.31",
    "4.13.32",
    "4.13.33",
    "4.13.34",
    "4.13.35",
    "4.13.36",
    "4.13.37",
    "4.13.38",
    "4.13.39",
    "4.13.4",
    "4.13.5",
    "4.13.6",
    "4.13.7",
    "4.13.8",
    "4.13.9",
    "4.2.0",
    "4.2.0-RC1",
    "4.2.0-beta1",
    "4.2.1",
    "4.2.2",
    "4.2.3",
    "4.2.4",
    "4.2.5",
    "4.3.0",
    "4.3.0-RC1",
    "4.3.1",
    "4.3.10",
    "4.3.11",
    "4.3.2",
    "4.3.3",
    "4.3.4",
    "4.3.5",
    "4.3.6",
    "4.3.7",
    "4.3.8",
    "4.3.9",
    "4.4.0",
    "4.4.0-RC1",
    "4.4.0-RC2",
    "4.4.0-beta1",
    "4.4.1",
    "4.4.10",
    "4.4.11",
    "4.4.12",
    "4.4.13",
    "4.4.14",
    "4.4.15",
    "4.4.16",
    "4.4.17",
    "4.4.18",
    "4.4.19",
    "4.4.2",
    "4.4.20",
    "4.4.21",
    "4.4.22",
    "4.4.23",
    "4.4.24",
    "4.4.25",
    "4.4.26",
    "4.4.27",
    "4.4.28",
    "4.4.29",
    "4.4.3",
    "4.4.30",
    "4.4.31",
    "4.4.32",
    "4.4.33",
    "4.4.34",
    "4.4.35",
    "4.4.36",
    "4.4.37",
    "4.4.38",
    "4.4.39",
    "4.4.4",
    "4.4.40",
    "4.4.41",
    "4.4.42",
    "4.4.43",
    "4.4.44",
    "4.4.45",
    "4.4.46",
    "4.4.47",
    "4.4.48",
    "4.4.49",
    "4.4.5",
    "4.4.50",
    "4.4.51",
    "4.4.52",
    "4.4.53",
    "4.4.54",
    "4.4.55",
    "4.4.56",
    "4.4.57",
    "4.4.6",
    "4.4.7",
    "4.4.8",
    "4.4.9",
    "4.5.0",
    "4.5.0-RC1",
    "4.5.0-RC2",
    "4.5.0-beta1",
    "4.5.0-beta2",
    "4.5.0-beta3",
    "4.5.1",
    "4.5.10",
    "4.5.11",
    "4.5.12",
    "4.5.13",
    "4.5.14",
    "4.5.2",
    "4.5.3",
    "4.5.4",
    "4.5.5",
    "4.5.6",
    "4.5.7",
    "4.5.8",
    "4.5.9",
    "4.6.0",
    "4.6.0-RC1",
    "4.6.0-RC2",
    "4.6.0-RC3",
    "4.6.1",
    "4.6.10",
    "4.6.11",
    "4.6.12",
    "4.6.13",
    "4.6.14",
    "4.6.2",
    "4.6.3",
    "4.6.4",
    "4.6.5",
    "4.6.6",
    "4.6.7",
    "4.6.8",
    "4.6.9",
    "4.7.0",
    "4.7.0-RC1",
    "4.7.0-RC2",
    "4.7.0-RC3",
    "4.7.0-RC4",
    "4.7.1",
    "4.7.2",
    "4.7.3",
    "4.7.4",
    "4.7.5",
    "4.7.6",
    "4.7.7",
    "4.8.0",
    "4.8.0-RC1",
    "4.8.0-RC2",
    "4.8.1",
    "4.8.2",
    "4.8.3",
    "4.8.4",
    "4.8.5",
    "4.8.6",
    "4.8.7",
    "4.8.8",
    "4.9.0",
    "4.9.0-RC1",
    "4.9.0-RC2",
    "4.9.1",
    "4.9.10",
    "4.9.11",
    "4.9.12",
    "4.9.13",
    "4.9.14",
    "4.9.15",
    "4.9.16",
    "4.9.17",
    "4.9.18",
    "4.9.19",
    "4.9.2",
    "4.9.20",
    "4.9.21",
    "4.9.22",
    "4.9.23",
    "4.9.24",
    "4.9.25",
    "4.9.26",
    "4.9.27",
    "4.9.28",
    "4.9.29",
    "4.9.3",
    "4.9.30",
    "4.9.31",
    "4.9.32",
    "4.9.33",
    "4.9.34",
    "4.9.35",
    "4.9.36",
    "4.9.37",
    "4.9.38",
    "4.9.39",
    "4.9.4",
    "4.9.40",
    "4.9.41",
    "4.9.42",
    "4.9.5",
    "4.9.6",
    "4.9.7",
    "4.9.8",
    "4.9.9"
  ]
}
Ecosystem versions

From 5.0.0-RC1 before 5.3.4

Fixed in 5.3.4

55 explicitly affected versions

5.0.0, 5.0.0-RC1, 5.0.0-RC2, 5.0.0-RC3, 5.0.0-RC4, 5.0.1, 5.0.10, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.0.6, 5.0.7, 5.0.8, 5.0.9, 5.1.0, 5.1.0-RC1, 5.1.0-RC2, 5.1.0-RC3, 5.1.1, 5.1.10, 5.1.11, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.1.6, 5.1.7, 5.1.8, 5.1.9, 5.2.0, 5.2.0-RC1, 5.2.0-RC2, 5.2.0-RC3, 5.2.0-RC4, 5.2.0-RC5, 5.2.0-RC6, 5.2.1, 5.2.10, 5.2.2, 5.2.3, 5.2.4, 5.2.5, 5.2.6, 5.2.7, 5.2.8, 5.2.9, 5.3.0, 5.3.0-RC1, 5.3.0-RC2, 5.3.0-RC3, 5.3.0-RC4, 5.3.1, 5.3.2, 5.3.3

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "5.0.0-RC1"
        },
        {
          "fixed": "5.3.4"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "5.0.0",
    "5.0.0-RC1",
    "5.0.0-RC2",
    "5.0.0-RC3",
    "5.0.0-RC4",
    "5.0.1",
    "5.0.10",
    "5.0.2",
    "5.0.3",
    "5.0.4",
    "5.0.5",
    "5.0.6",
    "5.0.7",
    "5.0.8",
    "5.0.9",
    "5.1.0",
    "5.1.0-RC1",
    "5.1.0-RC2",
    "5.1.0-RC3",
    "5.1.1",
    "5.1.10",
    "5.1.11",
    "5.1.2",
    "5.1.3",
    "5.1.4",
    "5.1.5",
    "5.1.6",
    "5.1.7",
    "5.1.8",
    "5.1.9",
    "5.2.0",
    "5.2.0-RC1",
    "5.2.0-RC2",
    "5.2.0-RC3",
    "5.2.0-RC4",
    "5.2.0-RC5",
    "5.2.0-RC6",
    "5.2.1",
    "5.2.10",
    "5.2.2",
    "5.2.3",
    "5.2.4",
    "5.2.5",
    "5.2.6",
    "5.2.7",
    "5.2.8",
    "5.2.9",
    "5.3.0",
    "5.3.0-RC1",
    "5.3.0-RC2",
    "5.3.0-RC3",
    "5.3.0-RC4",
    "5.3.1",
    "5.3.2",
    "5.3.3"
  ]
}

References