EUVD-2026-64920
GHSA-4ghj-75g5-h9pf
Severity by source
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-accessible control panel requires low-privilege authentication (PR:L); scope unchanged as execution is bounded to the PHP/web user; full C/I/A impact reflects arbitrary code execution capability.
Primary rating from Vendor (Hackrate).
CVSS VectorVendor: Hackrate
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
4DescriptionCVE.org
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.
AnalysisAI
Remote code execution in Craft CMS control panel element-search condition handling affects authenticated low-privilege users across the 4.x and 5.x release lines. The root cause is a JSON cleanse bypass in the condition.config parameter that allows Yii framework behavior and event configuration keys to survive sanitization and be processed as live object-configuration directives after decoding, yielding arbitrary PHP code execution as the web server user. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated session in the Craft CMS control panel with at minimum the access level necessary to interact with element-search condition rules - typically an editor or higher role. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N) accurately reflects the primary risk profile: network-reachable, low-complexity exploitation requiring only low-privilege authenticated access, with full confidentiality, integrity, and availability impact on the vulnerable system. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | The primary remediation is to upgrade Craft CMS to version 5.10.6 or later on the 5.x branch, or to version 4.18.2 or later on the 4.x branch; the 5.10.6 release is confirmed at https://github.com/craftcms/cms/releases/tag/5.10.6. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all Craft CMS 4.x and 5.x deployments and restrict control panel access to essential administrative personnel only; review access logs for anomalous element-search condition activity by low-privilege accounts. …
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