Authenticated RCE via `condition.config` JSON cleanse bypass

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-78416
StatePUBLISHED
AssignerHackrate
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-24 16:17:24 UTC
Updated2026-08-24 16:17:24 UTC
DescriptionCraft 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.

Risk And Classification

Primary CVSS: v4.0 8.7 HIGH from 7004884b-51e2-48e8-b4a2-5ca29e80453e

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

Problem Types: CWE-915 | CWE-915 CWE-915 Improperly controlled modification of Dynamically-Determined object attributes

VersionSourceTypeScoreSeverityVector
4.07004884b-51e2-48e8-b4a2-5ca29e80453eSecondary8.7HIGHCVSS: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/C...
4.0CNACVSS8.7HIGHCVSS: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 v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Craftcms Cms affected 4.0.0-RC1 4.18.2 semver Not specified
CNA Craftcms Cms affected 5.0.0-RC1 5.10.6 semver Not specified

References

ReferenceSourceLinkTags
www.hckrt.com/hacktivity/HCKRT-JD662P 7004884b-51e2-48e8-b4a2-5ca29e80453e www.hckrt.com
github.com/craftcms/cms/releases/tag/5.10.6 7004884b-51e2-48e8-b4a2-5ca29e80453e github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: saladin (en)

CNA: Hackrate (en)

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