{"id":"GHSA-m5q3-mvcr-gc5m","aliases":[],"status":"published","title":"silverstripe/framework BackURL validation bypass with malformed URLs","description":"A carefully constructed malformed URL can be used to circumvent the offsite redirection protection used on `BackURL` parameters. This could lead to users entering sensitive data in malicious websites instead of the intended one.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-601"],"published":"2024-05-27T23:02:56Z","modified":"2024-12-02T05:33:12Z","fixes":[{"ecosystem":"Packagist","package":"silverstripe/framework","fixed_in":["4.0.4","4.1.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"silverstripe/framework","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0-rc1"},{"fixed":"4.0.4"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"silverstripe/framework","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.1.0-rc1"},{"fixed":"4.1.1"}]}]},{"source":"osv","ecosystem":"Packagist","package":"silverstripe/framework","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0-rc1"},{"fixed":"4.0.4"}]}],"versions":["4.0.0","4.0.0-rc1","4.0.0-rc2","4.0.0-rc3","4.0.1","4.0.1-rc1","4.0.2","4.0.3"]},{"source":"osv","ecosystem":"Packagist","package":"silverstripe/framework","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.1.0-rc1"},{"fixed":"4.1.1"}]}],"versions":["4.1.0","4.1.0-rc1","4.1.0-rc2"]}],"references":[{"url":"https://github.com/silverstripe/silverstripe-framework/commit/9053014a7e2eba28d000881e0bb3cc1d6e6b2eea","tags":["web"]},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/framework/SS-2018-008-1.yaml","tags":["web"]},{"url":"https://www.silverstripe.org/download/security-releases/ss-2018-008","tags":["web"]},{"url":"https://github.com/advisories/GHSA-m5q3-mvcr-gc5m"},{"url":"https://github.com/silverstripe/silverstripe-framework","tags":["package"]}],"sources":{"ghsa":[{"id":"GHSA-m5q3-mvcr-gc5m","title":"silverstripe/framework BackURL validation bypass with malformed URLs","description":"A carefully constructed malformed URL can be used to circumvent the offsite redirection protection used on `BackURL` parameters. This could lead to users entering sensitive data in malicious websites instead of the intended one.","status":"published","published":"2024-05-27T23:02:56Z","modified":"2024-05-27T23:02:58Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:37:52.2286Z"}],"osv":[{"id":"GHSA-m5q3-mvcr-gc5m","title":"silverstripe/framework BackURL validation bypass with malformed URLs","description":"A carefully constructed malformed URL can be used to circumvent the offsite redirection protection used on `BackURL` parameters. This could lead to users entering sensitive data in malicious websites instead of the intended one.","status":"published","published":"2024-05-27T23:02:56Z","modified":"2024-12-02T05:33:12.974827Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T15:46:51.463834Z"}]}}