---
cve: "CVE-2026-33157"
severity: "HIGH"
cvss: 8.6
epss: "1%"
vendor: "craftcms"
kev: false
exploited: false
published: "2026-03-24 18:16:09"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-17T23:04:52+02:00"
---

# CVE-2026-33157

> 8.6 HIGH · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Hoch | good |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 79198636a24ce405d8365e1bc281b3405313ccbf (Commit)
- 97e90b4bdee369c1af3ca77a77531132df240e4e (Commit)

## Referenzen

- <https://github.com/craftcms/cms/security/advisories/GHSA-2fph-6v5w-89hh>
- <https://github.com/craftcms/cms/commit/97e90b4bdee369c1af3ca77a77531132df240e4e>
- <https://github.com/craftcms/cms/releases/tag/5.9.13>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-33157) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_