CVE-2026-78416
Published:August 24, 2026
Updated:September 24, 2026
Craft CMS versions from 4.0.0-RC1 before 4.18.2 and from 5.0.0-RC1 before 5.10.6 contain an authenticated remote code execution vulnerability in control panel element-search condition handling. A JSON cleanse bypass in condition.config allows Yii behavior/event configuration keys to be interpreted after decoding, enabling command execution as the PHP/web user.
Affected Packages
https://github.com/craftcms/cms.git (GITHUB):
Affected version(s) >=4.0.0-RC1 <4.18.2Fix Suggestion:
Update to version 4.18.2https://github.com/craftcms/cms.git (GITHUB):
Affected version(s) >=5.0.0-RC1 <5.10.6Fix Suggestion:
Update to version 5.10.6craftcms/cms (PHP):
Affected version(s) >=5.0.0-RC1 <5.10.6Fix Suggestion:
Update to version 5.10.6craftcms/cms (PHP):
Affected version(s) >=4.0.0-RC1 <4.18.2Fix Suggestion:
Update to version 4.18.2Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improperly Controlled Modification of Dynamically-Determined Object Attributes
EPSS
Base Score:
0.61