CVE-2021-41126 Deleted Admin Can Sign In to Admin Interface
Deleted administrator accounts can still sign in to the backend, allowing unauthorized access to administrative functions.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-41126?
CVE-2021-41126 is a high-severity authentication bypass vulnerability in Octobercms October, published on 6 Oct 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
October is a Content Management System (CMS) and web platform built on the the Laravel PHP Framework. In affected versions administrator accounts which had previously been deleted may still be able to sign in to the backend using October CMS v2.0. The issue has been patched in v2.1.12 of the october/october package. There are no workarounds for this issue and all users should update.
Weakness: CWE-287
Which versions are affected by CVE-2021-41126?
4 open source packages ship an affected version, including october/october and october/system. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
october/october Packagist | From 2.1.0 | 2.1.12 |
october/october Packagist | From 2.1.0 | 2.1.12 |
october/system Packagist | From 2.1.0 | 2.1.12 |
october/system Packagist | From 2.1.0 | 2.1.12 |
Products include Octobercms October.
How do I fix CVE-2021-41126?
Upgrade october/october to 2.1.12 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2021-41126 being exploited?
There is no known exploitation of CVE-2021-41126 in the wild and no public exploit code.
Other vulnerabilities in Octobercms October
Sources
Also known as GHSA-6gjf-7w99-j7x7.