{"id":"CVE-2021-28171","aliases":["EUVD-2021-14861","GHSA-7w8x-g282-6cf2"],"status":"published","title":"Vangene deltaFlow E-platform - Broken Authentication","description":"The Vangene deltaFlow E-platform does not take properly protective measures. Attackers can obtain privileged permissions remotely by tampering with users’ data in the Cookie.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01223,"percentile":0.69117,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-522","CWE-565"],"published":"2021-04-06T11:20:27Z","modified":"2026-06-17T03:45:57Z","products":[{"vendor":"deltaflow_project","product":"deltaflow"},{"vendor":"vangene","product":"deltaflow e-platform"}],"references":[{"url":"https://www.twcert.org.tw/tw/cp-132-4618-4dcc2-1.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://www.chtsecurity.com/news/7f0874b5-516b-4637-842d-b6fb6c335c66","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28171"},{"url":"https://github.com/advisories/GHSA-7w8x-g282-6cf2"}],"sources":{"cve":[{"id":"CVE-2021-28171","title":"Vangene deltaFlow E-platform - Broken Authentication","description":"The Vangene deltaFlow E-platform does not take properly protective measures. Attackers can obtain privileged permissions remotely by tampering with users’ data in the Cookie.","status":"published","published":"2021-04-06T11:20:27.171Z","modified":"2024-09-16T23:41:41.9Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:33:09.175141Z"}],"euvd":[{"id":"EUVD-2021-14861","description":"The Vangene deltaFlow E-platform does not take properly protective measures. Attackers can obtain privileged permissions remotely by tampering with users’ data in the Cookie.","status":"published","published":"2021-04-06T11:20:27Z","modified":"2024-09-16T23:41:41Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T00:54:47.592767Z"}],"ghsa":[{"id":"GHSA-7w8x-g282-6cf2","title":"The Vangene deltaFlow E-platform does not take properly protective measures. Attackers can obtain...","description":"The Vangene deltaFlow E-platform does not take properly protective measures. Attackers can obtain privileged permissions remotely by tampering with users’ data in the Cookie.","status":"published","published":"2022-05-24T22:28:24Z","modified":"2023-01-27T05:04:08Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-522","CWE-565"],"updated_at":"2026-11-02T14:42:24.095154Z"}],"nvd":[{"id":"CVE-2021-28171","description":"The Vangene deltaFlow E-platform does not take properly protective measures. Attackers can obtain privileged permissions remotely by tampering with users’ data in the Cookie.","status":"published","published":"2021-04-06T12:15:17.077Z","modified":"2026-06-17T03:45:57.083Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-522","CWE-565"],"updated_at":"2026-11-02T14:06:51.610648Z"}]}}