{"id":"CVE-2021-27915","aliases":["GHSA-2rc5-2755-v422"],"url":"https://o3.security/vulnerability/CVE-2021-27915","summary":"Mautic vulnerable to stored cross-site scripting in description field","details":"### Impact\nPrior to the patched version, there is an XSS vulnerability in the description fields within the Mautic application which could be exploited by a logged in user of Mautic with the appropriate permissions.\n\nThis could lead to the user having elevated access to the system.\n\n### Patches\nUpdate to 4.4.12\n\n### Workarounds\nNone\n\n### References\n- https://owasp.org/www-project-top-ten/2017/A7_2017-Cross-Site_Scripting_(XSS)\n- https://owasp.org/www-project-web-security-testing-guide/latest/4-Web_Application_Security_Testing/07-Input_Validation_Testing/02-Testing_for_Stored_Cross_Site_Scripting\n\nIf you have any questions or comments about this advisory:\n\nEmail us at [security@mautic.org](mailto:security@mautic.org)","published":"2024-09-17T14:15:14.100Z","modified":"2026-08-07T15:15:30.007988Z","cvss":{"score":9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"mautic/core","fixedVersion":"4.4.12"}],"fix":{"url":"https://github.com/mautic/mautic/commit/2d648394e183b1d2d910cea32e89d40a5915b5d4","label":"mautic/mautic@2d64839"},"references":[{"type":"ADVISORY","url":"https://github.com/mautic/mautic/security/advisories/GHSA-2rc5-2755-v422"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27915"},{"type":"WEB","url":"https://github.com/mautic/mautic/commit/2d648394e183b1d2d910cea32e89d40a5915b5d4"},{"type":"PACKAGE","url":"https://github.com/mautic/mautic"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T15:15:30.007988Z"}}