CVE-2026-72778

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Source
https://cve.org/CVERecord?id=CVE-2026-72778
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72778.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-72778
Aliases
Published
2026-08-11T12:17:14Z
Modified
2026-08-28T11:30:54Z
Severity
  • 8.7 (High) CVSS_V4 - 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 Calculator
Summary
Craft CMS 5.0.0-RC1 before 5.10.6 Authenticated RCE via condition.config
Details

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 the control panel element-search condition handling. Craft cleanses the outer request-controlled condition array via Component::cleanseConfig(), but Conditions::createCondition() later decodes and merges the JSON string in condition.config without re-running cleanseConfig() on the decoded configuration. Because condition.config is a JSON string during the first cleanse, Yii special config keys such as 'as ...' and 'on ...' can be hidden inside it and, after JSON decoding, are interpreted by Yii as behavior/event configuration during FieldLayout object creation. An attacker with an authenticated control panel session (and a valid CSRF token) can exploit this to execute operating system commands as the PHP/web user.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-915"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72778.json"
}
References

Affected packages

Git / github.com/craftcms/cms

Affected ranges

Type
GIT
Repo
https://github.com/craftcms/cms
Events
Introduced
04755d93f86d07cc183db47db8a0eee106892e30
Fixed
5c055703a13ba3a52bf013d7ba6c0223d6f62ef8
Introduced
daac7c1da2f701f2e9ddee1da1457ce61660b581
Fixed
c7ea105e1d2cf043e76e7847d84e5732071a26b4
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "5.0.0-RC1"
        },
        {
            "fixed": "5.10.6"
        },
        {
            "introduced": "4.0.0-RC1"
        },
        {
            "fixed": "4.18.2"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72778.json"