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CVE-2026-28695— Craft affected by authenticated RCE via Twig SSTI - create() function + Symfony Process gadget

Quick assessment

Affected
craftcms cms
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.

Craft CMS是Craft CMS开源的一套内容管理系统（CMS）。 Craft CMS 5.8.21版本存在安全漏洞，该漏洞源于通过create() Twig函数结合Symfony Process小工具链进行服务器端模板注入，可能导致远程代码执行。

AI Predicted 8.8 Difficulty: Easy EPSS 0.63% · P49
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I. Basic Information for CVE-2026-28695

Vulnerability Information
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Vulnerability Title
Craft affected by authenticated RCE via Twig SSTI - create() function + Symfony Process gadget
Source: CVE Program / CVE List V5
Vulnerability Description
Craft is a content management system (CMS). There is an authenticated admin RCE in Craft CMS 5.8.21 via Server-Side Template Injection using the create() Twig function combined with a Symfony Process gadget chain. The create() Twig function exposes Craft::createObject(), which allows instantiation of arbitrary PHP classes with constructor arguments. Combined with the bundled symfony/process dependency, this enables RCE. This bypasses the fix implemented for CVE-2025-57811 (patched in 5.8.7). This vulnerability is fixed in 5.9.0-beta.1 and 4.17.0-beta.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1336
Source: CVE Program / CVE List V5
Vulnerability Title
Craft CMS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Craft CMS是Craft CMS开源的一套内容管理系统（CMS）。 Craft CMS 5.8.21版本存在安全漏洞，该漏洞源于通过create() Twig函数结合Symfony Process小工具链进行服务器端模板注入，可能导致远程代码执行。
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
craftcms cms >= 5.8.7, < 5.9.0-beta.1 -

II. Public POCs for CVE-2026-28695

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III. Intelligence Information for CVE-2026-28695

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Patches & Fixes for CVE-2026-28695 (1)

Vendor Advisories for CVE-2026-28695 (1)

Same Patch Batch · craftcms · 2026-03-04 · 8 CVEs total

CVE-2026-28696 Craft affected by IDOR via GraphQL @parseRefs
CVE-2026-28697 Craft Affected by Authenticated RCE via "craft.app.fs.write()" in Twig Templates
CVE-2026-28781 Craft Affected by Entries Authorship Spoofing via Mass Assignment
CVE-2026-28782 Craft has a Permission Bypass and IDOR in Duplicate Entry Action
CVE-2026-29069 Craft has an unauthenticated activation email trigger with potential user enumeration
CVE-2026-28783 Craft has a Twig Function Blocklist Bypass
CVE-2026-28784 Craft is affected by potential authenticated Remote Code Execution via Twig SSTI

IV. Related Vulnerabilities

Same product: cms
Same vendor: craftcms
Same weakness: CWE-1336

V. Comments for CVE-2026-28695

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