{"id":"CVE-2020-11476","aliases":["EUVD-2021-2356","GHSA-hf9p-9r39-r2h3"],"status":"published","title":"Unrestricted Uploads in Concrete5","description":"Concrete5 before 8.5.3 allows Unrestricted Upload of File with Dangerous Type such as a .phar file.","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02936,"percentile":0.87197,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-434"],"published":"2020-07-28T20:31:14Z","modified":"2026-10-20T10:51:02Z","fixes":[{"ecosystem":"Packagist","package":"concrete5/concrete5","fixed_in":["8.5.3"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"concrete5/concrete5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.5.3"}]}]},{"source":"osv","ecosystem":"Packagist","package":"concrete5/concrete5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.5.3"}]}],"versions":["8.0","8.0.1","8.0.2","8.0.3","8.1.0","8.2.0","8.2.0RC2","8.2.1","8.3.0","8.3.1","8.3.2","8.4.0","8.4.0RC3","8.4.0RC4","8.4.1","8.4.2","8.4.3","8.4.4","8.4.5","8.5.0","8.5.0RC1","8.5.0RC2","8.5.1","8.5.2"]}],"products":[{"vendor":"concretecms","product":"concrete_cms"}],"references":[{"url":"https://herolab.usd.de/security-advisories/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://herolab.usd.de/security-advisories/usd-2020-0041/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://github.com/concrete5/concrete5/pull/8713","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/concrete5/concrete5/releases/tag/8.5.3","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-11476","tags":["advisory"]},{"url":"https://github.com/concretecms/concretecms/commit/d296f4ba4f6ad94b199c21c1b16f0d185adab343","tags":["web"]},{"url":"https://github.com/advisories/GHSA-hf9p-9r39-r2h3"},{"url":"https://github.com/concrete5/concrete5","tags":["package"]},{"url":"https://herolab.usd.de/security-advisories/usd-2020-0041","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2020-11476","description":"Concrete5 before 8.5.3 allows Unrestricted Upload of File with Dangerous Type such as a .phar file.","status":"published","published":"2020-07-28T20:31:14Z","modified":"2024-08-04T11:28:14.032Z","updated_at":"2026-11-02T14:35:57.352161Z"}],"euvd":[{"id":"EUVD-2021-2356","description":"Concrete5 before 8.5.3 allows Unrestricted Upload of File with Dangerous Type such as a .phar file.","status":"published","published":"2020-07-28T20:31:14Z","modified":"2024-08-04T11:28:14Z","updated_at":"2026-11-03T03:07:46.270701Z"}],"ghsa":[{"id":"GHSA-hf9p-9r39-r2h3","title":"Unrestricted Uploads in Concrete5","description":"Concrete5 before 8.5.3 allows Unrestricted Upload of File with Dangerous Type such as a .phar file.","status":"published","published":"2021-11-03T17:29:29Z","modified":"2023-04-06T20:45:21Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:36:49.768564Z"}],"nvd":[{"id":"CVE-2020-11476","description":"Concrete5 before 8.5.3 allows Unrestricted Upload of File with Dangerous Type such as a .phar file.","status":"published","published":"2020-07-28T21:15:14.103Z","modified":"2026-06-17T02:50:14.59Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:06:10.994748Z"}],"osv":[{"id":"CVE-2020-11476","description":"Concrete5 before 8.5.3 allows Unrestricted Upload of File with Dangerous Type such as a .phar file.","status":"published","published":"2020-07-28T21:15:14.103Z","modified":"2026-10-20T10:51:02.026674097Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:14.034736Z"},{"id":"GHSA-hf9p-9r39-r2h3","title":"Unrestricted Uploads in Concrete5","description":"Concrete5 before 8.5.3 allows Unrestricted Upload of File with Dangerous Type such as a .phar file.","status":"published","published":"2021-11-03T17:29:29Z","modified":"2024-02-18T05:33:33.4395Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T15:46:48.920784Z"}]}}