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Advisories

Craft CMS 5.0.0-RC1 before 5.10.12 Behavior Injection RCE

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severity
high
date
Affecting

  • cms >= 5.0.0-RC1, < 5.10.12

CWE
  • CWE-94 Improper Control of Generation of Code ('Code Injection')
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Description
Craft CMS versions before 5.10.12 fail to properly cleanse string-typed field-layout elements, allowing authenticated control-panel users to inject Yii2 behavior attachments and event handlers. Attackers can post field-layout tab elements as JSON strings to bypass cleanse validation, then trigger arbitrary object instantiation and code execution through Craft::createObject().

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