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CVE-2026-78416

Authenticated RCE via `condition.config` JSON cleanse bypass

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 4.18.2, 5.10.6
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

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.

Timeline

  1. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  2. CVE published
  3. Record last updated

Affected versions

  • craftcms/cms

    From 4.0.0-RC1 · fixed in 4.18.2; From 5.0.0-RC1 · fixed in 5.10.6

References 3

hckrt.com

GitHub · craftcms/cms