---
cve: "CVE-2026-70589"
severity: "MEDIUM"
cvss: 4.8
epss: "17%"
vendor: "TryGhost"
kev: false
exploited: false
published: "2026-08-04 22:17:16"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-12T05:24:21+02:00"
---

# CVE-2026-70589

> 4.8 MEDIUM · 🧪 PoC

## Beschreibung

Ghost is a Node.js content management system. From 4.22.0 until 6.54.1, a missing validation check allowed users to redeem subscription offers that were no longer active. This issue is fixed in version 6.54.1.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- d91c0fc52dfc987d71a9803dbcbe6447d21b92fb (Commit)

## Referenzen

- <https://github.com/TryGhost/Ghost/security/advisories/GHSA-4wx2-7gvj-qfq3>
- <https://github.com/TryGhost/Ghost/commit/d91c0fc52dfc987d71a9803dbcbe6447d21b92fb>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-70589) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_