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CVE-2026-29179— October: Editor Sub-Permission Bypass for Asset and Blueprint File Operations

CVSS 3.3 · Low EPSS 0.03% · P9
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I. Basic Information for CVE-2026-29179

Vulnerability Information

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Vulnerability Title
October: Editor Sub-Permission Bypass for Asset and Blueprint File Operations
Source: NVD (National Vulnerability Database)
Vulnerability Description
October is a Content Management System (CMS) and web platform. Prior to 3.7.16 and 4.1.16, fine-grained sub-permission checks for asset and blueprint file operations were not enforced in the CMS and Tailor editor extensions. This only affects backend users who were explicitly granted editor access but had editor.cms_assets or editor.tailor_blueprints specifically withheld, an uncommon permission configuration. In this edge case, such users could perform file operations (create, delete, rename, move, upload) on theme assets or blueprint files despite lacking the required sub-permission. A related operator precedence error in the Tailor navigation also disclosed the theme blueprint directory tree under the same conditions. This vulnerability is fixed in 3.7.16 and 4.1.16.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
October 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
October是October开源的一个内容管理系统 (CMS) 和网络平台。 October 3.7.16之前版本和4.1.16之前版本存在安全漏洞,该漏洞源于未强制执行细粒度子权限检查,可能导致特定权限配置下的后端用户执行未授权的文件操作或泄露主题蓝图目录树。
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

VendorProductAffected VersionsCPESubscribe
octobercmsoctober >= 4.0.0, < 4.1.16 -

II. Public POCs for CVE-2026-29179

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III. Intelligence Information for CVE-2026-29179

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Same Patch Batch · octobercms · 2026-04-21 · 4 CVEs total

CVE-2026-262746.6 MEDIUMOctober: Safe Mode Bypass via Twig Database Write Operations
CVE-2026-260674.9 MEDIUMOctober: Safe Mode Bypass via CSS Preprocessor Compilers
CVE-2026-279373.1 LOWOctober: Reflected XSS via DataTable Form Widget

IV. Related Vulnerabilities

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