{"id":"CVE-2021-40104","aliases":["EUVD-2021-27293","GHSA-jh36-7vgg-mwm2"],"status":"published","title":"An issue was discovered in Concrete CMS through 8.5.5. There is an SVG sanitizer bypass.","description":"An issue was discovered in Concrete CMS through 8.5.5. There is an SVG sanitizer bypass.","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","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01375,"percentile":0.72428,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2021-09-27T11:56:40Z","modified":"2026-10-24T10:30:58Z","products":[{"vendor":"concretecms","product":"concrete_cms"}],"references":[{"url":"https://hackerone.com/reports/1102088","tags":["x_refsource_MISC","x_transferred","Permissions Required","Third Party Advisory","report"]},{"url":"https://documentation.concretecms.org/developers/introduction/version-history/856-release-notes","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-40104"},{"url":"https://github.com/advisories/GHSA-jh36-7vgg-mwm2"}],"sources":{"cve":[{"id":"CVE-2021-40104","description":"An issue was discovered in Concrete CMS through 8.5.5. There is an SVG sanitizer bypass.","status":"published","published":"2021-09-27T11:56:40Z","modified":"2024-08-04T02:27:31.825Z","updated_at":"2026-11-02T14:33:01.495293Z"}],"euvd":[{"id":"EUVD-2021-27293","description":"An issue was discovered in Concrete CMS through 8.5.5. There is an SVG sanitizer bypass.","status":"published","published":"2021-09-27T11:56:40Z","modified":"2024-08-04T02:27:31Z","updated_at":"2026-11-03T03:24:21.368958Z"}],"ghsa":[{"id":"GHSA-jh36-7vgg-mwm2","title":"An issue was discovered in Concrete CMS through 8.5.5. There is an SVG sanitizer bypass.","description":"An issue was discovered in Concrete CMS through 8.5.5. There is an SVG sanitizer bypass.","status":"published","published":"2022-05-24T19:15:53Z","modified":"2023-01-27T05:03:33Z","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-863"],"updated_at":"2026-11-02T14:42:16.196802Z"}],"nvd":[{"id":"CVE-2021-40104","description":"An issue was discovered in Concrete CMS through 8.5.5. There is an SVG sanitizer bypass.","status":"published","published":"2021-09-27T12:15:08.093Z","modified":"2026-06-17T04:06:31.73Z","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","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:58.933037Z"}],"osv":[{"id":"CVE-2021-40104","description":"An issue was discovered in Concrete CMS through 8.5.5. There is an SVG sanitizer bypass.","status":"published","published":"2021-09-27T12:15:08.093Z","modified":"2026-10-24T10:30:58.400497562Z","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"}],"updated_at":"2026-11-02T15:44:21.249056Z"}]}}