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Servers and applications

CVE-2021-41126

Deleted Admin Can Sign In to Admin Interface

Severity
High 7.2
Published
6 Oct 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
2.1.12
Also known as
GHSA-6gjf-7w99-j7x7
Sources
NVD, Project advisories (GitHub)

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.

Affected software

SoftwareAffected versions
October CMSServers and applications · cpe:a:octobercms:october
  • From 2.0.0 before 2.1.12
October CMSServers and applications · github:octobercms/october
  • From 2.1 before 2.1.12

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-41126
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-41126
  • GitHub Advisory Database https://github.com/advisories/GHSA-6gjf-7w99-j7x7
  • github.com https://github.com/octobercms/october/security/advisories/GHSA-6gjf-7w99-j7x7