---
cve: "CVE-2026-80204"
severity: "CRITICAL"
cvss: 9.3
epss: "0.2%"
vendor: "getgrav"
kev: false
exploited: false
published: "2026-08-26 11:16:39"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T20:06:26+02:00"
---

# CVE-2026-80204

> 9.3 CRITICAL · 🧪 PoC

## Beschreibung

The Grav API plugin (getgrav/grav-plugin-api) before 1.0.18 does not apply the API-key scope cap in the injectSecurityTab() function of BlueprintController when deciding whether a page's security/permissions blueprint section is editable. Because the function performs raw isSuperAdmin()/hasPermission() checks without a request parameter, it cannot enforce scopeAllows(). A caller holding a scoped API key may therefore see (and potentially edit) page permission fields beyond the scope granted to the key. The end-to-end write-time impact was not fully confirmed by the reporter.

## 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 |

## Referenzen

- <https://github.com/getgrav/grav/security/advisories/GHSA-mcx6-4rvg-7r8v>
- <https://www.vulncheck.com/advisories/grav-before-1.0.18-authentication-bypass-via-scoped-api-key-2>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-80204) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_