CVE-2026-33157

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Source
https://cve.org/CVERecord?id=CVE-2026-33157
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33157.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-33157
Aliases
Published
2026-03-24T17:22:00.966Z
Modified
2026-04-10T05:42:38.098296Z
Severity
  • 8.6 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Craft CMS: Potential authenticated Remote Code Execution via malicious attached Behavior
Details

Craft CMS is a content management system (CMS). From version 5.6.0 to before version 5.9.13, a Remote Code Execution (RCE) vulnerability exists in Craft CMS, it can be exploited by any authenticated user with control panel access. This is a bypass of a previous fix. The existing patches add cleanseConfig() to assembleLayoutFromPost() and various FieldsController actions to strip Yii2 behavior/event injection keys ("as" and "on" prefixed keys). However, the fieldLayouts parameter in ElementIndexesController::actionFilterHud() is passed directly to FieldLayout::createFromConfig() without any sanitization, enabling the same behavior injection attack chain. This issue has been patched in version 5.9.13.

Database specific 
{
    "cwe_ids": [
        "CWE-470"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33157.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/craftcms/cms

Affected ranges

Type
GIT
Repo
https://github.com/craftcms/cms
Events
Introduced
e14cba6cdca8902c3efb0549a5dc290002b750c2
Fixed
79198636a24ce405d8365e1bc281b3405313ccbf
Database specific 
{
    "versions": [
        {
            "introduced": "5.6.0"
        },
        {
            "fixed": "5.9.13"
        }
    ]
}

Affected versions

5.*
5.6.0
5.6.0.1
5.6.0.2
5.6.1
5.6.10
5.6.10.1
5.6.10.2
5.6.11
5.6.12
5.6.13
5.6.14
5.6.15
5.6.16
5.6.17
5.6.2
5.6.3
5.6.4
5.6.5
5.6.5.1
5.6.6
5.6.7
5.6.8
5.6.9
5.6.9.1
5.7.0
5.7.1
5.7.1.1
5.7.10
5.7.11
5.7.2
5.7.3
5.7.4
5.7.5
5.7.6
5.7.7
5.7.8
5.7.8.1
5.7.8.2
5.7.9
5.8.0
5.8.1
5.8.10
5.8.11
5.8.12
5.8.13
5.8.13.1
5.8.13.2
5.8.14
5.8.15
5.8.16
5.8.17
5.8.18
5.8.19
5.8.2
5.8.20
5.8.21
5.8.22
5.8.23
5.8.3
5.8.4
5.8.5
5.8.6
5.8.7
5.8.8
5.8.9
5.9.0
5.9.0-beta.1
5.9.0-beta.2
5.9.1
5.9.10
5.9.11
5.9.12
5.9.2
5.9.3
5.9.4
5.9.5
5.9.6
5.9.7
5.9.8
5.9.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33157.json"