High severity · published Nov 25, 2017
CVE-2017-16941
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…
8.8
CVSS
1.6%
EPSS
No
On KEV
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 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 interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OC
October · Octobercms
through 1.0.428 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-16941
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-16941
Issue Tracking
https://github.com/octobercms/october/issues/3257
More from October
9.1
CVE-2021-32648
Account Takeover in Octobercms
9.8
CVE-2021-3311
An issue was discovered in October through build 471
9.8
CVE-2017-1000197
October CMS build 412 is vulnerable to file path modification in asset move functionality resulting in creating creating malicious files on the server
9.8
CVE-2017-1000196
October CMS build 412 is vulnerable to PHP code execution in the asset manager functionality resulting in site compromise and possibly other applications on the server
9.8
CVE-2017-1000194
October CMS build 412 is vulnerable to Apache configuration modification via file upload functionality resulting in site compromise and possibly other applications on the server