---
cve: "CVE-2026-28697"
severity: "CRITICAL"
cvss: 9.4
epss: "1.1%"
vendor: "craftcms"
kev: false
exploited: false
published: "2026-03-04 17:16:21"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T10:55:41+02:00"
---

# CVE-2026-28697

> 9.4 CRITICAL · 🧪 PoC

## Beschreibung

Craft is a content management system (CMS). Prior to 4.17.0-beta.1 and 5.9.0-beta.1, an authenticated administrator can achieve Remote Code Execution (RCE) by injecting a Server-Side Template Injection (SSTI) payload into Twig template fields (e.g., Email Templates). By calling the craft.app.fs.write() method, an attacker can write a malicious PHP script to a web-accessible directory and subsequently access it via the browser to execute arbitrary system commands. This vulnerability is fixed in 4.17.0-beta.1 and 5.9.0-beta.1.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
```

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

## Patch verfügbar (OSV)

- 0ad14c3c7e590461b52aeb44859659e2e231e04d (Commit)
- 42cef196d68dd8d48ceaab89b2c9e2edd2cecbe8 (Commit)

## Referenzen

- <https://github.com/craftcms/cms/security/advisories/GHSA-v47q-jxvr-p68x>
- <https://github.com/craftcms/cms/pull/18216>
- <https://github.com/craftcms/cms/pull/18219>
- <https://github.com/craftcms/cms/commit/9dc2a4a3ec8e9cd5e8c0d1129f36371437519197>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-28697) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_