Is CVE-2017-16941 actively exploited?

CVE-2017-16941 has no public evidence of in-the-wild exploitation as of 2025-04-20.

What is the CVSS score for CVE-2017-16941?

CVE-2017-16941 has a CVSS score of 8.8 (HIGH severity). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2017-16941?

Patch guidance is available from octobercms security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2017-16941.

Fix CVE-2017-16941 - HIGH octobercms october

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.

CVSS Metrics

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-434 · Unrestricted File Upload

Metadata

Primary Vendor: OCTOBERCMS
Published: 11/25/2017
Last Modified: 4/20/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2017-16941

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary