---
cve: "CVE-2026-35047"
severity: "CRITICAL"
cvss: 9.3
epss: "1%"
vendor: "Ajax30"
kev: false
exploited: false
published: "2026-04-06 18:16:42"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-22T01:01:05+02:00"
---

# CVE-2026-35047

> 9.3 CRITICAL · 🧪 PoC

## Beschreibung

Brave CMS is an open-source CMS. Prior to 2.0.6, an Unrestricted File Upload vulnerability in the CKEditor endpoint allows attackers to upload arbitrary files, including executable scripts. This may lead to Remote Code Execution (RCE) on the server, potentially resulting in full system compromise, data exfiltration, or service disruption. All users running affected versions of BraveCMS are impacted. This vulnerability is fixed in 2.0.6.

## CNA-Record (Kanon, cvelistV5)

- CNA: **GitHub_M**
- State: PUBLISHED
- Stand: 2026-04-07 14:07:45
- CNA-CVSS: **9.3** (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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 | Keine | bad |
| UI Interaktion | Keine | bad |

## Schwachstellen-Klasse

- **CWE-434** — Unrestricted Upload of File with Dangerous Type
  The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

## Angriffsmuster (CAPEC)

- [CAPEC-1 — Accessing Functionality Not Properly Constrained by ACLs](https://capec.mitre.org/data/definitions/1.html) _(Severity: High)_

## ATT&CK-Techniken

- [T1574.010 — Hijack Execution Flow: ServicesFile Permissions Weakness](https://attack.mitre.org/techniques/T1574/010/)

## Patch verfügbar (OSV)

- 058ee4ed7c2b39d540af8274024afcbc9532aa83 (Commit)

## Referenzen

- <https://github.com/Ajax30/BraveCMS-2.0/security/advisories/GHSA-9rcc-w59j-965v>
- <https://github.com/Ajax30/BraveCMS-2.0/pull/122>
- <https://github.com/Ajax30/BraveCMS-2.0/commit/058ee4ed7c2b39d540af8274024afcbc9532aa83>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-35047/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_