{"id":"GHSA-jg68-vhv3-9r8f","aliases":["CVE-2026-25523"],"title":"Magento's X-Original-Url header can expose admin url","description":"### Impact\n\nThe admin url can be discovered without prior knowledge of it's location by exploiting the X-Original-Url header on some configurations.\n\n### Patches\n\nThe bug comes from the Zend library and is patche by unsetting the header in the bootstrap process.\n\n### Workarounds\n\nUnset the `X-Original-Url` header in the web server configuration.\n\n### References\n\nThe activation of these headers is coming from the Zend_Controller module. It appears this has been known to some degree since 2016 -\nhttps://peterocallaghan.co.uk/2016/12/magento-poisoning-cache/ (dead link now..)\n\n### Credit\n\nAnees Hyder ( @anees0xdev ) via HackerOne\nhttps://hackerone.com/anees0x_dev/hacktivity","severity":"medium","score":5.3,"published":"2026-02-02T23:12:57.000Z","modified":"2026-02-10T20:02:45.329Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"openmage/magento-lts","ranges":[{"events":[{"introduced":"0"},{"fixed":"20.16.1"}],"type":"ECOSYSTEM"}],"versions":["1.9.1.1","1.9.2.0","1.9.2.1","1.9.2.2","1.9.2.3","1.9.2.4","1.9.3.0","1.9.3.1","v19.4.0","v19.4.1","v19.4.10","v19.4.11","v19.4.12","v19.4.13","v19.4.14","v19.4.15","v19.4.16","v19.4.17","v19.4.18","v19.4.19","v19.4.2","v19.4.20","v19.4.21","v19.4.22","v19.4.23","v19.4.3","v19.4.4","v19.4.5","v19.4.6","v19.4.7","v19.4.8","v19.4.9","v19.5.0","v19.5.0-rc1","v19.5.0-rc2","v19.5.0-rc3","v19.5.0-rc4","v19.5.0-rc5","v19.5.1","v19.5.2","v19.5.3","v20.0.0","v20.0.1","v20.0.10","v20.0.11","v20.0.12","v20.0.13","v20.0.14","v20.0.15","v20.0.16","v20.0.17","v20.0.18","v20.0.19","v20.0.2","v20.0.20","v20.0.3","v20.0.4","v20.0.5","v20.0.6","v20.0.7","v20.0.8","v20.1.0","v20.1.0-rc1","v20.1.0-rc2","v20.1.0-rc3","v20.1.0-rc4","v20.1.0-rc5","v20.1.0-rc6","v20.1.0-rc7","v20.1.1","v20.10.0","v20.10.1","v20.10.2","v20.11.0","v20.12.0","v20.12.1","v20.12.2","v20.12.3","v20.13.0","v20.14.0","v20.15.0","v20.16.0","v20.2.0","v20.3.0","v20.4.0","v20.5.0","v20.6.0","v20.7.0","v20.8.0","v20.9.0"],"fixed":["20.16.1"]}],"references":["https://github.com/OpenMage/magento-lts/security/advisories/GHSA-jg68-vhv3-9r8f","https://nvd.nist.gov/vuln/detail/CVE-2026-25523","https://github.com/OpenMage/magento-lts","https://hackerone.com/bugs?subject=openmage&report_id=3416312"],"sources":[{"name":"OSV","id":"GHSA-jg68-vhv3-9r8f","modified":"2026-02-10T20:02:45.329318Z","url":"https://osv.dev/vulnerability/GHSA-jg68-vhv3-9r8f"}],"assessments":[{"source":"OSV","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3}]}