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CVE-2026-26274— October: Safe Mode Bypass via Twig Database Write Operations

Quick assessment

Affected
octobercms october
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

October是October开源的一个内容管理系统 (CMS) 和网络平台。 October 3.7.14之前版本和4.1.10之前版本存在安全漏洞，该漏洞源于Twig沙箱安全策略问题，可能导致具有Developer权限的后端用户对任意数据库表执行写入操作。

CVSS 6.6 · Medium EPSS 0.39% · P31
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I. Basic Information for CVE-2026-26274

Vulnerability Information
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Vulnerability Title
October: Safe Mode Bypass via Twig Database Write Operations
Source: CVE Program / CVE List V5
Vulnerability Description
October is a Content Management System (CMS) and web platform. Prior to 3.7.14 and 4.1.10, a vulnerability was identified in the Twig sandbox security policy that allowed database write operations when cms.safe_mode is enabled. Backend users with Developer permissions could use Twig template markup to execute insert, update, and delete operations on any database table through the query builder, which is included in the sandbox allow-list. This vulnerability is fixed in 3.7.14 and 4.1.10.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不完整的黑名单
Source: CVE Program / CVE List V5
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 3.7.14之前版本和4.1.10之前版本存在安全漏洞，该漏洞源于Twig沙箱安全策略问题，可能导致具有Developer权限的后端用户对任意数据库表执行写入操作。
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 >= 4.0.0, < 4.1.10 -

II. Public POCs for CVE-2026-26274

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III. Intelligence Information for CVE-2026-26274

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

CVE-2026-26067 4.9 MEDIUM October: Safe Mode Bypass via CSS Preprocessor Compilers
CVE-2026-29179 3.3 LOW October: Editor Sub-Permission Bypass for Asset and Blueprint File Operations
CVE-2026-27937 3.1 LOW October: Reflected XSS via DataTable Form Widget

IV. Related Vulnerabilities

Same product: october
Same vendor: octobercms
Same weakness: CWE-184

V. Comments for CVE-2026-26274

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