CVE-2017-16941

HighCVSS 8.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 8.8/10CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-434

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/octobercms/october/issues/3257Issue Tracking, Third Party Advisory
https://github.com/octobercms/october/issues/3257Issue Tracking, Third Party Advisory

Timeline

Published: Nov 25, 2017
Last modified: Jun 17, 2026
NVD status: Modified

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