Privilege escalation by backend users assigned to the default "Publisher" system role
Priority LOW 19CWE-863Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass, Privilege escalation
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-863 and CWE-269.
Summary
October is a free, open-source, self-hosted CMS platform based on the Laravel PHP Framework. In October CMS from version 1.0.319 and before version 1.0.470, backend users with the default "Publisher" system role have access to create & manage users where they can choose which role the new user has. This means that a user with "Publisher" access has the ability to escalate their access to "Developer" access. Issue has been patched in Build 470 (v1.0.470) & v1.1.1.
Why it matters now
EPSS 0.00313 24th percentileScored 2026-11-07
Fix Fixed october (octobercms): 1.0.470october/backend (Packagist): 1.0.470
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 | 1.0.319 to before 1.0.470 | 1.0.470 | Patch available | CNA |
| — | october/backend (Packagist) | 1.0.319 to before 1.0.470 | 1.0.470 | Patch available | GHSA-rfjc-xrmf-5vvw |
- october VendorOctober CMS Affected 1.0.319 to before 1.0.470 Fixed in 1.0.470 Patch available CNA
- october/backend (Packagist) Vendor— Affected 1.0.319 to before 1.0.470 Fixed in 1.0.470 Patch available GHSA-rfjc-xrmf-5vvw
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:* | 1.0.319 to before 1.0.469 | Vulnerable | October CMS |
- cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:* Versions 1.0.319 to before 1.0.469 Vulnerable ·October CMS
Remediation
- Fix · CNA october (octobercms) Fixed in 1.0.470
- Fix · GHSA-rfjc-xrmf-5vvw october/backend (Packagist) Fixed in 1.0.470 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-15248
- 2026-10-03 Alias added: GHSA-rfjc-xrmf-5vvw
References
Advisory 2
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-2020-15248 · CVE Program
- CVE-2020-15248 · NVD
- FIRST EPSS
- GHSA-rfjc-xrmf-5vvw · 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