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TI-2021-12317 Aliases CVE-2021-32649GHSA-wv23-pfj7-2mjj

Authenticated file write leads to remote code execution in october/system

Priority MEDIUM 43CWE-74Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
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-94.

Summary

October CMS is a self-hosted content management system (CMS) platform based on the Laravel PHP Framework. Prior to versions 1.0.473 and 1.1.6, an attacker with "create, modify and delete website pages" privileges in the backend is able to execute PHP code by running specially crafted Twig code in the template markup. The issue has been patched in Build 473 (v1.0.473) and v1.1.6. Those unable to upgrade may apply the patch to their installation manually as a workaround.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0138 72nd percentileScored 2026-11-07
Fix Fixed october (octobercms): 1.0.473, 1.1.6october/system (Packagist): 1.1.6, 1.0.473

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
October CMSoctoberbefore 1.0.473; 1.1.0 to before 1.1.61.0.473, 1.1.6Patch availableCNA
—october/system (Packagist)1.1.0 to before 1.1.61.1.6Patch availableGHSA-wv23-pfj7-2mjj
—october/system (Packagist)before 1.0.4731.0.473Patch availableGHSA-wv23-pfj7-2mjj
  • october VendorOctober CMS Affected before 1.0.473; 1.1.0 to before 1.1.6 Fixed in 1.0.473, 1.1.6 Patch available CNA
  • october/system (Packagist) Vendor— Affected 1.1.0 to before 1.1.6 Fixed in 1.1.6 Patch available GHSA-wv23-pfj7-2mjj
  • october/system (Packagist) Vendor— Affected before 1.0.473 Fixed in 1.0.473 Patch available GHSA-wv23-pfj7-2mjj

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:*before 1.0.473; 1.1.0 to before 1.1.6VulnerableOctober CMS
  • cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:* Versions before 1.0.473; 1.1.0 to before 1.1.6 Vulnerable ·October CMS

Remediation

  • Fix · CNA october (octobercms) Fixed in 1.0.473, 1.1.6
  • Fix · GHSA-wv23-pfj7-2mjj october/system (Packagist) Fixed in 1.1.6 Advisory →
  • Fix · GHSA-wv23-pfj7-2mjj october/system (Packagist) Fixed in 1.0.473 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-32649
  2. 2026-10-03 Alias added: GHSA-wv23-pfj7-2mjj

References

  • 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
See all 56 →

Sources