Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Octobercms | October | <= 1.0.428 |
Related Weaknesses (CWE)
References
- https://github.com/octobercms/october/issues/3257Issue TrackingThird Party Advisory
- https://github.com/octobercms/october/issues/3257Issue TrackingThird Party Advisory
FAQ
What is CVE-2017-16941?
CVE-2017-16941 is a vulnerability with a CVSS score of 8.8 (HIGH). 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/them...
How severe is CVE-2017-16941?
CVE-2017-16941 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-16941?
Check the references section above for vendor advisories and patch information. Affected products include: Octobercms October.