# CVE-2026-78416

## Summary

- **CVE ID:** CVE-2026-78416
- **Severity:** HIGH
- **CVSS Score:** 8.7 (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)
- **CWE:** CWE-915
- **Published:** Aug 24, 2026
- **Last Modified:** Aug 26, 2026

## Description

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 Products

- craftcms — cms (4.0.0-RC1)
- craftcms — cms (5.0.0-RC1)

## References

- [CNA](https://www.hckrt.com/hacktivity/HCKRT-JD662P)
- [CNA](https://github.com/craftcms/cms/releases/tag/5.10.6)
- [CNA](https://github.com/craftcms/cms)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.61%
- **EPSS Percentile:** 46.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._