CVE-2020-15248 Privilege escalation by backend users assigned to the default "Publisher" system role
Backend users with the default Publisher role can escalate privileges to Developer by creating new users with higher access levels.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-15248?
CVE-2020-15248 is a medium-severity vulnerability in Octobercms October, published on 23 Nov 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
October is a free, open-source, self-hosted CMS platform based on the Laravel PHP Framework. In October CMS from version 1.0.319 and before version 1.0.470, backend users with the default "Publisher" system role have access to create & manage users where they can choose which role the new user has. This means that a user with "Publisher" access has the ability to escalate their access to "Developer" access. Issue has been patched in Build 470 (v1.0.470) & v1.1.1.
Which versions are affected by CVE-2020-15248?
2 open source packages ship an affected version, including october/backend. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
october/backend Packagist | From 1.0.319 | 1.0.470 |
october/backend Packagist | From 1.0.319 | 1.0.470 |
Products include Octobercms October.
How do I fix CVE-2020-15248?
Upgrade october/backend to 1.0.470 or later.
Is CVE-2020-15248 being exploited?
There is no known exploitation of CVE-2020-15248 in the wild and no public exploit code.
Other vulnerabilities in Octobercms October
Sources
Also known as GHSA-rfjc-xrmf-5vvw.