{"id":"GHSA-39wj-j3jc-858m","summary":"XSS vulnerability leveraged through referrers could allow un-authorized admin access in Mautic","details":"### Impact\nThis is a cross-site scripting vulnerability which affects every version of Mautic and could allow an attacker unauthorised administrator level access to Mautic.\n\nThis vulnerability was reported by Naveen Sunkavally at Horizon3.ai.\n\n### Patches\nUpgrade to 3.2.4 or 2.16.5.\n\nLink to patch for 2.x versions: https://github.com/mautic/mautic/compare/2.16.4...2.16.5.diff\n\nLink to patch for 3.x versions: https://github.com/mautic/mautic/compare/3.2.2...3.2.4.diff\n\n### Workarounds\nNone\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Post in https://forum.mautic.org/c/support\n* Email us at security@mautic.org","aliases":["CVE-2020-35124"],"modified":"2026-07-08T06:00:55.187626721Z","published":"2021-01-19T20:43:56Z","database_specific":{"github_reviewed_at":"2021-01-19T20:43:12Z","nvd_published_at":"2021-01-28T06:15:00Z","cwe_ids":["CWE-79"],"severity":"CRITICAL","github_reviewed":true},"references":[{"type":"WEB","url":"https://github.com/mautic/mautic/security/advisories/GHSA-39wj-j3jc-858m"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-35124"},{"type":"WEB","url":"https://github.com/mautic/mautic/commit/20c5dc39b62164f6922ce53ea42cbb4ccec64e57"},{"type":"WEB","url":"https://forum.mautic.org/c/announcements/16"},{"type":"WEB","url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/mautic/core/CVE-2020-35124.yaml"},{"type":"WEB","url":"https://packagist.org/packages/mautic/core"},{"type":"WEB","url":"https://www.horizon3.ai/disclosures/mautic-unauth-xss-to-rce"},{"type":"WEB","url":"https://www.mautic.org/blog/community/security-release-all-versions-mautic-prior-2-16-5-and-3-2-4"}],"affected":[{"package":{"name":"mautic/core","ecosystem":"Packagist","purl":"pkg:composer/mautic/core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.2.4"}]}],"versions":["3.0.0","3.0.1","3.0.2","3.0.2-rc","3.1.0","3.1.0-rc","3.1.1","3.1.1-rc","3.1.2","3.1.2-rc","3.2.0","3.2.0-rc","3.2.1","3.2.2","3.2.2-rc","3.2.3"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/01/GHSA-39wj-j3jc-858m/GHSA-39wj-j3jc-858m.json"}},{"package":{"name":"mautic/core","ecosystem":"Packagist","purl":"pkg:composer/mautic/core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.16.5"}]}],"versions":["2.0.0","2.0.1","2.1.0","2.1.1","2.10.0","2.10.0-beta","2.10.1","2.11.0","2.11.0-beta","2.12.0","2.12.0-beta","2.12.1","2.12.1-beta","2.12.2","2.12.2-beta","2.13.0","2.13.0-beta","2.13.1","2.14.0","2.14.0-beta","2.14.1","2.14.1-beta","2.14.2","2.14.2-beta","2.15.0","2.15.0-beta","2.15.1","2.15.1-beta","2.15.2","2.15.2-beta","2.15.3","2.15.3-beta","2.16.0","2.16.0-beta","2.16.1","2.16.1-beta","2.16.2","2.16.2-beta","2.16.3","2.16.3-beta","2.16.4","2.2.0","2.2.1","2.3.0","2.4.0","2.5.0","2.5.1","2.6.0","2.6.1","2.7.0","2.7.1","2.8.0","2.8.1","2.8.2","2.9.0","2.9.0-beta","2.9.1","2.9.2"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/01/GHSA-39wj-j3jc-858m/GHSA-39wj-j3jc-858m.json"}}],"schema_version":"1.9.0"}