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CVE-2026-41129— Craft CMS has Server-Side Request Forgery (SSRF) with Asset Uploads Mutations

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存在代码问题漏洞，该漏洞源于容易受到服务端请求伪造攻击。以下版本受到影响：4.x分支至4.17.8版本和5.x分支至5.9.14版本。

AI Predicted 7.5 Difficulty: Easy EPSS 0.27% · P19

Possible ATT&CK Techniques 1 AI

T1187 · Forced Authentication
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I. Basic Information for CVE-2026-41129

Vulnerability Information
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Vulnerability Title
Craft CMS has Server-Side Request Forgery (SSRF) with Asset Uploads Mutations
Source: CVE Program / CVE List V5
Vulnerability Description
Craft CMS is a content management system (CMS). Versions on the 4.x branch through 4.17.8 and the 5.x branch through 5.9.14 are vulnerable to Server-Side Request Forgery. The exploitation requires a few permissions to be enabled in the used GraphQL schema: "Edit assets in the <VolumeName> volume" and "Create assets in the <VolumeName> volume." Versions 4.17.9 and 5.9.15 patch the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Craft CMS 代码问题漏洞
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存在代码问题漏洞，该漏洞源于容易受到服务端请求伪造攻击。以下版本受到影响：4.x分支至4.17.8版本和5.x分支至5.9.14版本。
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 >= 5.0.0-RC1, < 5.9.15 -

II. Public POCs for CVE-2026-41129

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III. Intelligence Information for CVE-2026-41129

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Patches & Fixes for CVE-2026-41129 (1)

Same Patch Batch · craftcms · 2026-04-21 · 3 CVEs total

CVE-2026-41130 Craft CMS has a host header injection leading to SSRF via resource-js endpoint
CVE-2026-41128 Craft CMS has a Missing Authorization Check on User Group Removal via save-permissions Act

IV. Related Vulnerabilities

Same product: cms
Same vendor: craftcms
Same weakness: CWE-918

V. Comments for CVE-2026-41129

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