{"id":"GHSA-25gq-jvx2-vg9x","aliases":[],"url":"https://o3.security/vulnerability/GHSA-25gq-jvx2-vg9x","summary":"Silverstripe X-Forwarded-Host request hostname injection","details":"A potential hostname injection vulnerability has been found which could allow attackers to alter url resolution.\n\nIf a request contains the X-Forwarded-Host HTTP header a website would then use its value in place of the actual HTTP hostname. In cases where caching is enabled, this could allow an attacker to potentially embed a remote url as the base_url for any site. This would then cause other visitors to the site to be redirected unknowingly.\n\nThis header is necessary for servers running behind a reverse proxy (such as nginx). Such servers are likely not vulnerable to this risk.\n\nA fix has been merged into the default installer, although existing projects which do not run behind a reverse proxy should update their htaccess as below:\n```\n<IfModule mod_headers.c>\n    # Remove X-Forwarded-Host header sent as a part of any request from the web\n    RequestHeader unset X-Forwarded-Host\n</IfModule>\n```","published":"2024-05-23T16:59:25Z","modified":"2024-11-28T05:40:39.913168Z","cvss":{"score":7.2,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"silverstripe/framework","fixedVersion":"3.1.13"}],"fix":{"url":"https://github.com/silverstripe/silverstripe-framework/commit/75137dbab28c0efd28b07e50044a50c5af4e46aa","label":"silverstripe/silverstripe-framework@75137db"},"references":[{"type":"WEB","url":"https://github.com/silverstripe/silverstripe-framework/commit/75137dbab28c0efd28b07e50044a50c5af4e46aa"},{"type":"WEB","url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/framework/SS-2015-013-1.yaml"},{"type":"PACKAGE","url":"https://github.com/silverstripe/silverstripe-framework"},{"type":"WEB","url":"https://www.silverstripe.org/software/download/security-releases/ss-2015-013"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2024-11-28T05:40:39.913168Z"}}