{"id":"CVE-2020-25768","aliases":["GHSA-f7wm-x4gw-6m23"],"url":"https://o3.security/vulnerability/CVE-2020-25768","summary":"Contao Insert tag injection in forms","details":"### Impact\n\nIt is possible to inject insert tags in front end forms which will be replaced when the page is rendered.\n\n### Patches\n\nUpdate to Contao 4.4.52, 4.9.6 or 4.10.1.\n\n### Workarounds\n\nDisable the front end login form and do not use form fields with array keys such as `fieldname[]`.\n\n### References\n\nhttps://contao.org/en/security-advisories/insert-tag-injection-in-forms\n\n### For more information\n\nIf you have any questions or comments about this advisory, open an issue in [contao/contao](https://github.com/contao/contao/issues/new/choose).\n","published":"2020-10-07T21:15:14.963Z","modified":"2026-08-07T15:12:10.509906Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Packagist","name":"contao/core-bundle","fixedVersion":"4.4.52"},{"ecosystem":"Packagist","name":"contao/core-bundle","fixedVersion":"4.9.6"},{"ecosystem":"Packagist","name":"contao/contao","fixedVersion":"4.4.52"},{"ecosystem":"Packagist","name":"contao/contao","fixedVersion":"4.9.6"},{"ecosystem":"Packagist","name":"contao/contao","fixedVersion":"4.10.1"},{"ecosystem":"Packagist","name":"contao/core-bundle","fixedVersion":"4.10.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://community.contao.org/en/forumdisplay.php?4-Announcements"},{"type":"ADVISORY","url":"https://contao.org/en/security-advisories/insert-tag-injection-in-forms.html"},{"type":"WEB","url":"https://github.com/contao/contao/security/advisories/GHSA-f7wm-x4gw-6m23"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-25768"},{"type":"WEB","url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/contao/CVE-2020-25768.yaml"},{"type":"WEB","url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/core-bundle/CVE-2020-25768.yaml"},{"type":"PACKAGE","url":"https://github.com/contao/contao"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T15:12:10.509906Z"}}