Description
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 ..\..\..\..\..\<file> 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:\<file>). The files can then be edited via the FileEditor.
References (2)
Core 2
Core References
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/MacdonaldRobinson/FlexDotnetCMS/releases/tag/v1.5.11
Exploit, Third Party Advisory x_refsource_misc
https://blog.vonahi.io/whats-in-a-re-name/
Scores
CVSS v3
8.1
EPSS
0.0175
EPSS Percentile
75.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Details
CWE
CWE-22
Status
published
Products (1)
flexdotnetcms_project/flexdotnetcms
< 1.5.11
Published
Nov 12, 2020
Tracked Since
Feb 18, 2026