CVE-2026-78416 PUBLISHED

Authenticated RCE via `condition.config` JSON cleanse bypass

Assigner: Hackrate
Reserved: 24.08.2026 Published: 24.08.2026 Updated: 24.08.2026

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.

Metrics

CVSS 4.0

CVSS 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
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	craftcms
Product	cms
Versions	Default: unaffected affected from 4.0.0-RC1 to 4.18.2 (excl.) affected from 5.0.0-RC1 to 5.10.6 (excl.)

Credits

saladin reporter
Hackrate coordinator

References

Problem Types

CWE-915 Improperly controlled modification of Dynamically-Determined object attributes CWE

Impacts

CAPEC-242 Code Injection