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CVE-2026-72782— Craft CMS 5.0.0-RC1 before 5.10.6 Environment Variable Leak

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公司的一套内容管理系统(CMS)。 Craft CMS 5.0.0-RC1至5.10.6之前版本和4.0.0-RC1至4.18.2之前版本存在权限许可和访问控制问题漏洞，该漏洞源于elementId参数中的环境变量和秘密在Twig模板渲染前被插入，即使启用了Twig沙箱，可能导致经过身份验证的攻击者通过盲错误技术泄露环境变量和秘密，进而伪造会话、提升权限并窃取数据库、SMTP、API或blob存储凭据。

CVSS 6.5 · Medium EPSS 0.39% · P31

Affected Version Matrix 4

VendorProduct Version RangeStatus
craftcms cms 5.0.0-RC1< 5.10.6 affected
5.10.6 unaffected
4.0.0-RC1< 4.18.2 affected
4.18.2 unaffected
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I. Basic Information for CVE-2026-72782

Vulnerability Information
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Vulnerability Title
Craft CMS 5.0.0-RC1 before 5.10.6 Environment Variable Leak
Source: CVE Program / CVE List V5
Vulnerability Description
Craft CMS versions >= 5.0.0-RC1 before 5.10.6 and >= 4.0.0-RC1 before 4.18.2 interpolate environment variables and secrets (via ${ENV_VAR} strings in the elementId parameter) into Twig templates before rendering, even when the Twig sandbox is enabled. An authenticated attacker with control panel access can render a malicious sandboxed Twig template and, using a blind error-based technique across many requests, incrementally leak arbitrary environment variables and secrets. These can be abused to forge sessions (via CRAFT_SECURITY_KEY), escalate privileges, and steal database, SMTP, API, or blob storage credentials. Fixed in 5.10.6 and 4.18.2.
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
将资源暴露给错误范围
Source: CVE Program / CVE List V5
Vulnerability Title
Craft CMS 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Craft CMS是Craft CMS公司的一套内容管理系统(CMS)。 Craft CMS 5.0.0-RC1至5.10.6之前版本和4.0.0-RC1至4.18.2之前版本存在权限许可和访问控制问题漏洞，该漏洞源于elementId参数中的环境变量和秘密在Twig模板渲染前被插入，即使启用了Twig沙箱，可能导致经过身份验证的攻击者通过盲错误技术泄露环境变量和秘密，进而伪造会话、提升权限并窃取数据库、SMTP、API或blob存储凭据。
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 ~ 5.10.6 -
craftcms cms 4.0.0-RC1 ~ 4.18.2 -

II. Public POCs for CVE-2026-72782

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III. Intelligence Information for CVE-2026-72782

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Vendor Advisories for CVE-2026-72782 (2)

Same Patch Batch · craftcms · 2026-08-11 · 8 CVEs total

CVE-2026-72778 8.8 HIGH Craft CMS 5.0.0-RC1 before 5.10.6 Authenticated RCE via condition.config
CVE-2026-72781 8.8 HIGH Craft CMS 5.0.0-RC1 before 5.10.7 Remote Code Execution via Twig Sandbox Escape
CVE-2026-72780 6.5 MEDIUM Craft CMS before 5.10.5 WebAuthn Assertion Replay via login-with-passkey
CVE-2026-72783 6.2 MEDIUM Craft CMS 5.0.0-RC1 before 5.10.6 Path Traversal via ensurePathIsContained
CVE-2026-72784 5.4 MEDIUM Craft CMS 5.0.0-RC1 before 5.10.6 SSRF via GraphQL asset mutation
CVE-2026-72779 4.5 MEDIUM Craft CMS 5.0.0-RC1 before 5.10.6 Arbitrary File Read via SplFileObject
CVE-2026-72785 4.3 MEDIUM Craft CMS before 5.10.6 Authorization Bypass via structures/move-element

IV. Related Vulnerabilities

Same product: cms
Same vendor: craftcms
Same weakness: CWE-668

V. Comments for CVE-2026-72782

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