{"id":"CVE-2021-27909","aliases":["EUVD-2021-1956","GHSA-32hw-3pvh-vcvc"],"status":"published","title":"XSS vulnerability on password reset page","description":"For Mautic versions prior to 3.3.4/4.0.0, there is an XSS vulnerability on Mautic's password reset page where a vulnerable parameter, \"bundle,\" in the URL could allow an attacker to execute Javascript code. The attacker would be required to convince or trick the target into clicking a password reset URL with the vulnerable parameter utilized.","severity":{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.04067,"percentile":0.90805,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2021-08-30T16:00:10Z","modified":"2026-10-20T10:53:41Z","exploits":[{"source":"nuclei","id":"CVE-2021-27909","title":"Mautic \u003c3.3.4 - Cross-Site Scripting","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-27909.yaml"}],"fixes":[{"ecosystem":"Packagist","package":"mautic/core","fixed_in":["3.3.4","4.0.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"mautic/core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.4"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"mautic/core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0-alpha1"},{"fixed":"4.0.0"}]}]},{"source":"osv","ecosystem":"Packagist","package":"mautic/core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.4"}]}],"versions":["1.0.0","1.0.0-beta","1.0.0-beta2","1.0.0-beta3","1.0.0-beta4","1.0.0-rc1","1.0.0-rc2","1.0.0-rc3","1.0.0-rc4","1.0.1","1.0.2","1.0.3","1.0.4","1.0.5","1.1.0","1.1.1","1.1.2","1.1.3","1.2.0","1.2.0-beta1","1.2.1","1.2.2","1.2.3","1.2.4","1.3.0","1.3.1","1.4.0","1.4.1","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","2.16.5","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","3.0.0","3.0.0-alpha","3.0.0-beta","3.0.0-beta2","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","3.2.4","3.2.5","3.2.5-rc","3.3.0","3.3.0-rc","3.3.1","3.3.2","3.3.2-rc","3.3.3","3.3.3-rc"]},{"source":"osv","ecosystem":"Packagist","package":"mautic/core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0-alpha1"},{"fixed":"4.0.0"}]}],"versions":["4.0.0-alpha1","4.0.0-beta","4.0.0-rc"]}],"products":[{"vendor":"acquia","product":"mautic"},{"vendor":"mautic","product":"mautic"}],"references":[{"url":"https://github.com/mautic/mautic/security/advisories/GHSA-32hw-3pvh-vcvc","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27909","tags":["advisory"]},{"url":"https://github.com/mautic/mautic/commit/942cb6992df619fdf1c181bfad9e25d5d4178b6f","tags":["web"]},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/mautic/core/CVE-2021-27909.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-32hw-3pvh-vcvc"},{"url":"https://github.com/mautic/mautic","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-27909","title":"XSS vulnerability on password reset page","description":"For Mautic versions prior to 3.3.4/4.0.0, there is an XSS vulnerability on Mautic's password reset page where a vulnerable parameter, \"bundle,\" in the URL could allow an attacker to execute Javascript code. The attacker would be required to convince or trick the target into clicking a password reset URL with the vulnerable parameter utilized.","status":"published","published":"2021-08-30T16:00:10.951Z","modified":"2024-09-16T20:52:58.796Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:04.360272Z"}],"euvd":[{"id":"EUVD-2021-1956","description":"For Mautic versions prior to 3.3.4/4.0.0, there is an XSS vulnerability on Mautic's password reset page where a vulnerable parameter, \"bundle,\" in the URL could allow an attacker to execute Javascript code. The attacker would be required to convince or trick the target into clicking a password reset URL with the vulnerable parameter utilized.","status":"published","published":"2021-08-30T16:00:10Z","modified":"2024-09-16T20:52:58Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-03T00:55:10.024877Z"}],"ghsa":[{"id":"GHSA-32hw-3pvh-vcvc","title":"XSS vulnerability on password reset page","description":"### Impact\nFor Mautic versions prior to 3.3.4, there is an XSS vulnerability on Mautic's password reset page where a vulnerable parameter, \"bundle,\" in the URL could allow an attacker to execute Javascript code. The attacker would be required to convince or trick the target into clicking a password reset URL with the vulnerable parameter utilized. \n\n### Patches\n\nUpgrade to 3.3.4 or 4.0.0\n\n### Workarounds\n\nNo\n\n### References\n\nhttps://github.com/mautic/mautic/releases/tag/3.3.4\nhttps://github.com/mautic/mautic/releases/tag/4.0.0\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at [security@mautic.org](mailto:security@mautic.org)\n","status":"published","published":"2021-09-01T18:40:56Z","modified":"2024-02-07T18:13:51Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:37:36.076201Z"}],"nvd":[{"id":"CVE-2021-27909","description":"For Mautic versions prior to 3.3.4/4.0.0, there is an XSS vulnerability on Mautic's password reset page where a vulnerable parameter, \"bundle,\" in the URL could allow an attacker to execute Javascript code. The attacker would be required to convince or trick the target into clicking a password reset URL with the vulnerable parameter utilized.","status":"published","published":"2021-08-30T16:15:07.23Z","modified":"2026-06-17T03:45:35.9Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:57.67549Z"}],"osv":[{"id":"CVE-2021-27909","description":"For Mautic versions prior to 3.3.4/4.0.0, there is an XSS vulnerability on Mautic's password reset page where a vulnerable parameter, \"bundle,\" in the URL could allow an attacker to execute Javascript code. The attacker would be required to convince or trick the target into clicking a password reset URL with the vulnerable parameter utilized.","status":"published","published":"2021-08-30T16:15:07.23Z","modified":"2026-10-20T10:53:41.294048451Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:19.129331Z"},{"id":"GHSA-32hw-3pvh-vcvc","title":"XSS vulnerability on password reset page","description":"### Impact\nFor Mautic versions prior to 3.3.4, there is an XSS vulnerability on Mautic's password reset page where a vulnerable parameter, \"bundle,\" in the URL could allow an attacker to execute Javascript code. The attacker would be required to convince or trick the target into clicking a password reset URL with the vulnerable parameter utilized. \n\n### Patches\n\nUpgrade to 3.3.4 or 4.0.0\n\n### Workarounds\n\nNo\n\n### References\n\nhttps://github.com/mautic/mautic/releases/tag/3.3.4\nhttps://github.com/mautic/mautic/releases/tag/4.0.0\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at [security@mautic.org](mailto:security@mautic.org)\n","status":"published","published":"2021-09-01T18:40:56Z","modified":"2026-07-08T06:27:33.29196495Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:35.050232Z"}]}}