Deleted Admin Can Sign In to Admin Interface
Priority LOW 34CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-287.
Summary
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.
Why it matters now
EPSS 0.01091 65th percentileScored 2026-11-07
Fix Fixed october (octobercms): 2.1.12october/october (Packagist): 2.1.12+1 more product
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| October CMS | october | 2.0.0 to before 2.1.12 | 2.1.12 | Patch available | CNA |
| — | october/october (Packagist) | 2.1.0 to before 2.1.12 | 2.1.12 | Patch available | GHSA-6gjf-7w99-j7x7 |
| — | october/system (Packagist) | 2.1.0 to before 2.1.12 | 2.1.12 | Patch available | GHSA-6gjf-7w99-j7x7 |
- october VendorOctober CMS Affected 2.0.0 to before 2.1.12 Fixed in 2.1.12 Patch available CNA
- october/october (Packagist) Vendor— Affected 2.1.0 to before 2.1.12 Fixed in 2.1.12 Patch available GHSA-6gjf-7w99-j7x7
- october/system (Packagist) Vendor— Affected 2.1.0 to before 2.1.12 Fixed in 2.1.12 Patch available GHSA-6gjf-7w99-j7x7
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:* | 2.0.0 to before 2.1.12 | Vulnerable | October CMS |
- cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:* Versions 2.0.0 to before 2.1.12 Vulnerable ·October CMS
Remediation
- Fix · CNA october (octobercms) Fixed in 2.1.12
- Fix · GHSA-6gjf-7w99-j7x7 october/october (Packagist) Fixed in 2.1.12 Advisory →
- Fix · GHSA-6gjf-7w99-j7x7 october/system (Packagist) Fixed in 2.1.12 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-41126
- 2026-10-03 Alias added: GHSA-6gjf-7w99-j7x7
References
More October CMS October vulnerabilities
- TI-2021-12316 Account Takeover in Octobercms KEVCVSS 3.1CRITICAL 9.1
- TI-2021-12318 Arbitrary code execution in october/system CVSS 3.1HIGH 8.8
- TI-2017-14456 October CMS build 412 is vulnerable to PHP code execution in the file upload… CVSS 3.0HIGH 7.2
- TI-2023-23545 A Cross-Site Scripting (XSS) vulnerability in installation of October v.3.4.16 allows an… CVSS 3.1MEDIUM 5.4
- TI-2023-19223 An arbitrary file upload vulnerability in October CMS v3.4.4 allows attackers to execute… CVSS 3.1MEDIUM 5.4
- TI-2024-30847 October 3.6.30 allows an authenticated admin account to upload a PDF file containing… CVSS 3.1MEDIUM 4.7
Sources
- CVE-2021-41126 · CVE Program
- CVE-2021-41126 · NVD
- FIRST EPSS
- GHSA-6gjf-7w99-j7x7 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences