CVE-2020-15248— Privilege escalation by backend users assigned to the default "Publisher" system role
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I. Basic Information for CVE-2020-15248
Vulnerability Information
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Vulnerability Title
Privilege escalation by backend users assigned to the default "Publisher" system role
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
October CMS 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
October CMS是一套基于PHP和Laravel Web应用程序框架的开源内容管理系统（CMS）。 October 1.0.319和1.0.470之前版本存在安全漏洞，该漏洞源于具有默认“Publisher”系统角色的后端用户可以创建和管理用户，他们可以选择新用户的角色。这意味着具有“发布者”访问权限的用户能够将其访问权限升级为“开发人员”访问权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| octobercms | october | >= 1.0.319, < 1.0.470 | - |
II. Public POCs for CVE-2020-15248
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · octobercms · 2020-11-23 · 5 CVEs total
| CVE-2020-15246 | 7.5 HIGH | Local File Inclusion by unauthenticated users |
| CVE-2020-15247 | 5.2 MEDIUM | Twig Sandbox Escape by authenticated users with access to editing CMS templates when safem |
| CVE-2020-26231 | 5.2 MEDIUM | Bypass of fix for CVE-2020-15247, Twig sandbox escape |
| CVE-2020-15249 | 2.8 LOW | Stored XSS by authenticated backend user with access to upload files |
IV. Related Vulnerabilities
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- CVE-2026-29179
October: Editor Sub-Permission Bypass for Asset and Blueprin - CVE-2026-27937
October: Reflected XSS via DataTable Form Widget - CVE-2026-26274
October: Safe Mode Bypass via Twig Database Write Operations - CVE-2026-26067
October: Safe Mode Bypass via CSS Preprocessor Compilers - CVE-2026-25133
October CMS has Stored XSS via SVG Filter Bypass
Same vendor: octobercms
- CVE-2026-29179
October: Editor Sub-Permission Bypass for Asset and Blueprin - CVE-2026-27937
October: Reflected XSS via DataTable Form Widget - CVE-2026-26274
October: Safe Mode Bypass via Twig Database Write Operations - CVE-2026-26067
October: Safe Mode Bypass via CSS Preprocessor Compilers - CVE-2026-25133
October CMS has Stored XSS via SVG Filter Bypass
Same weakness: CWE-863
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