CVE-2026-79988
Published:August 27, 2026
Updated:September 24, 2026
The Twig sandbox mechanism in Craft CMS is configured to allow dangerous functionality from the Yii framework, leading to authenticated RCE similar to previously disclosed vulnerabilities.
Affected Packages
craftcms/cms (PHP):
Affected version(s) >=5.0.0-RC1 <5.10.7Fix Suggestion:
Update to version 5.10.7craftcms/cms (PHP):
Affected version(s) >=4.0.0-RC1 <4.18.3Fix Suggestion:
Update to version 4.18.3Related 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)
Protection Mechanism Failure
EPSS
Base Score:
0.26