CVE-2017-1000194 — october
CRITICALCVE-2017-1000194 is a critical-severity (CVSS 9.8) Unrestricted File Upload vulnerability in october/october. A fix is available for october/october — see the affected versions and patch details below.
October CMS File Upload Vulnerability
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
october/octoberReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.
Description
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.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | october/october | all versions | 1.0.413composer require october/october:^1.0.413 |
Affected Products
octoberoctobercmsDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for october/october, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update october/october to 1.0.413 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2017-1000194 is resolved across your whole dependency graph.
Workarounds
Treat uploaded files as untrusted until proven otherwise: validate the actual content type rather than the supplied extension, store uploads outside the web root on a volume mounted without execute permission, and rename them to server-generated identifiers so an attacker cannot choose the path a request will later resolve.
Frequently Asked Questions
Is CVE-2017-1000194 in your dependencies?
Find it across Packagist, including transitive dependencies.