{"id":"CVE-2020-27385","details":"Incorrect Access Control in the FileEditor (/Admin/Views/FileEditor/) in FlexDotnetCMS before v1.5.11 allows an authenticated remote attacker to read and write to existing files outside the web root. The files can be accessed via directory traversal, i.e., by entering a .. (dot dot) path such as ..\\..\\..\\..\\..\\\u003cfile\u003e in the input field of the FileEditor. In FlexDotnetCMS before v1.5.8, it is also possible to access files by specifying the full path (e.g., C:\\\u003cfile\u003e). The files can then be edited via the FileEditor.","modified":"2026-04-10T04:31:15.420703Z","published":"2020-11-12T19:15:15.113Z","references":[{"type":"ADVISORY","url":"https://github.com/MacdonaldRobinson/FlexDotnetCMS/releases/tag/v1.5.11"},{"type":"EVIDENCE","url":"https://blog.vonahi.io/whats-in-a-re-name/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/macdonaldrobinson/flexdotnetcms","events":[{"introduced":"0"},{"fixed":"0a819b1255315e33550ed915b58ca424280334ec"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"1.5.11"}]}}],"versions":["v0.1.0","v0.2.0","v0.3.0","v0.3.1","v0.4.0","v0.4.1","v0.5.0","v0.5.1","v0.5.2","v0.5.3","v0.6.0","v0.7.0","v0.8.0","v0.8.1","v0.8.2","v0.8.3","v0.8.4","v0.8.5","v0.8.6","v0.8.7","v0.8.8","v0.8.9","v0.9.0","v0.9.1","v0.9.2","v0.9.3","v0.9.4","v0.9.5","v0.9.6","v0.9.7","v0.9.8","v0.9.9","v1.0.0","v1.0.1","v1.1.0","v1.2.0","v1.3.0","v1.3.1","v1.3.2","v1.3.3","v1.4.0","v1.4.1","v1.5.0","v1.5.1","v1.5.10","v1.5.2","v1.5.3","v1.5.5","v1.5.6","v1.5.7","v1.5.8","v1.5.9"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27385.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"}]}