---
cve: "CVE-2026-31049"
severity: "CRITICAL"
cvss: 9.8
epss: "1.2%"
vendor: "n/a"
kev: false
exploited: false
published: "2026-04-14 14:16:13"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-27T22:01:47+01:00"
---

# CVE-2026-31049

> 9.8 CRITICAL · 🧪 PoC

## Beschreibung

An issue in Hostbill v.2025-11-24 and 2025-12-01 allows a remote attacker to execute arbitrary code and escalate privileges via the CSV registration field

## CNA-Record (Kanon, cvelistV5)

- CNA: **mitre**
- State: PUBLISHED
- Stand: 2026-04-16 12:06:52

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **poc**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Schwachstellen-Klasse

- **CWE-1236** — Improper Neutralization of Formula Elements in a CSV File
  The product saves user-provided information into a Comma-Separated Value (CSV) file, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as a command when the file is opened by a spreadsheet product.

## Referenzen

- <https://hostbillapp.com/changelog>
- <https://hostbillapp.com/release-notes/11-27-2025.html>
- <https://blog.hostbillapp.com/2025/12/03/hostbill-security-advisory/>
- <https://hostbillapp.com/responsible-disclosure>
- <https://hostbillapp.com/release-notes/12-01-2025.html>
- <https://github.com/Muhammad5235/HostBill-CVEs-2025/blob/main/Missing%20Server-Side%20Validation/Registration%20fields%20%26%20Import%20Csv>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-31049/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_