Description
October CMS through 1.0.428 does not prevent use of .htaccess in themes, which allows remote authenticated users to execute arbitrary PHP code by downloading a theme ZIP archive from /backend/cms/themes, and then uploading and importing a modified archive with two new files: a .php file and a .htaccess file. NOTE: the vendor says "I don't think [an attacker able to login to the system under an account that has access to manage/upload themes] is a threat model that we need to be considering.
References (1)
Core 1
Core References
Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/octobercms/october/issues/3257
Scores
CVSS v3
8.8
EPSS
0.0051
EPSS Percentile
66.4%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-434
Status
published
Products (1)
octobercms/october
< 1.0.428
Published
Nov 25, 2017
Tracked Since
Feb 18, 2026