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CVE-2026-56394— Craft CMS - Authenticated Path Traversal in assets/icon Extension Parameter

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.

CraftCMS cms是CraftCMS的内容管理系统。 Craft CMS 存在路径遍历漏洞，该漏洞源于assets/icon端点中extension参数未经验证，可能导致经过身份验证的攻击者通过传递路径遍历序列绕过扩展验证，造成本地文件读取。

CVSS 6.5 · Medium EPSS 0.34% · P27

Affected Version Matrix 4

VendorProduct Version RangeStatus
craftcms cms 4.0.0-RC1< 4.17.7 affected
4.17.7 unaffected
5.0.0-RC1< 5.9.13 affected
5.9.13 unaffected
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I. Basic Information for CVE-2026-56394

Vulnerability Information
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Vulnerability Title
Craft CMS - Authenticated Path Traversal in assets/icon Extension Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
Craft CMS from 4.0.0-RC1 contains an authenticated path traversal vulnerability in the assets/icon endpoint where the extension parameter is not validated before file existence checks. Attackers can bypass extension validation by passing traversal sequences that resolve to existing SVG files, allowing local file read access.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Craft CMS 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CraftCMS cms是CraftCMS的内容管理系统。 Craft CMS 存在路径遍历漏洞，该漏洞源于assets/icon端点中extension参数未经验证，可能导致经过身份验证的攻击者通过传递路径遍历序列绕过扩展验证，造成本地文件读取。
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 4.0.0-RC1 ~ 4.17.7 -

II. Public POCs for CVE-2026-56394

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III. Intelligence Information for CVE-2026-56394

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Patches & Fixes for CVE-2026-56394 (1)

Vendor Advisories for CVE-2026-56394 (1)

Other References for CVE-2026-56394 (1)

Same Patch Batch · craftcms · 2026-06-21 · 7 CVEs total

CVE-2026-56382 7.2 HIGH Craft CMS - Remote Code Execution via Missing Config Sanitization in FieldsController
CVE-2026-56393 4.8 MEDIUM Craft CMS - Multiple Stored Cross-Site Scripting in Settings Names and Field Options
CVE-2026-56383 4.8 MEDIUM Craft CMS - Stored XSS in Table Field via Row Heading Column Type
CVE-2026-56381 4.8 MEDIUM Craft CMS - Stored XSS via User Group Name in User Permissions Page
CVE-2026-56385 4.3 MEDIUM Craft CMS - Authorization Bypass in assets/preview-file Endpoint
CVE-2026-56384 4.3 MEDIUM Craft CMS - Missing Authorization in assets/preview-thumb Endpoint

IV. Related Vulnerabilities

Same product: cms
Same vendor: craftcms
Same weakness: CWE-22

V. Comments for CVE-2026-56394

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