October CMS safe mode bypass using Page template injection
Priority LOW 23CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-94.
Summary
October is a Content Management System (CMS) and web platform to assist with development workflow. An authenticated backend user with the `editor.cms_pages`, `editor.cms_layouts`, or `editor.cms_partials` permissions who would normally not be permitted to provide PHP code to be executed by the CMS due to `cms.safe_mode` being enabled can craft a special request to include PHP code in the CMS template. This issue has been patched in version 3.4.15.
Why it matters now
EPSS 0.00511 43rd percentileScored 2026-11-07
Fix Fixed october (octobercms): 3.4.15october/system (Packagist): 3.4.15
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 | 3.0.0 to before 3.4.15 | 3.4.15 | Patch available | CNA |
| — | october/system (Packagist) | 3.0.0 to before 3.4.15 | 3.4.15 | Patch available | GHSA-q22j-5r3g-9hmh |
- october VendorOctober CMS Affected 3.0.0 to before 3.4.15 Fixed in 3.4.15 Patch available CNA
- october/system (Packagist) Vendor— Affected 3.0.0 to before 3.4.15 Fixed in 3.4.15 Patch available GHSA-q22j-5r3g-9hmh
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:* | 3.0.0 to before 3.4.15 | Vulnerable | October CMS |
- cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:* Versions 3.0.0 to before 3.4.15 Vulnerable ·October CMS
Remediation
- Fix · CNA october (octobercms) Fixed in 3.4.15
- Fix · GHSA-q22j-5r3g-9hmh october/system (Packagist) Fixed in 3.4.15 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-44381
- 2026-10-03 Alias added: GHSA-q22j-5r3g-9hmh
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-2023-44381 · CVE Program
- CVE-2023-44381 · NVD
- FIRST EPSS
- GHSA-q22j-5r3g-9hmh · 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