---
cve: "CVE-2026-75835"
severity: "CRITICAL"
cvss: 9.3
epss: "22%"
vendor: "getgrav"
kev: false
exploited: false
published: "2026-08-18 12:19:33"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T08:41:00+02:00"
---

# CVE-2026-75835

> 9.3 CRITICAL · 🧪 PoC

## Beschreibung

Grav API plugin (getgrav/grav-plugin-api) before 1.0.14 contains a missing authorization vulnerability in userPassesAuthorize() (AbstractApiController.php). The function fails to consult the calling request's API key scopes, relying instead on the account's raw super-admin flag and ACL grants. As a result, an authenticated attacker holding a scoped API key minted on a privileged account can bypass their declared scope restrictions to access authorize-gated UI metadata and item definitions (sidebar/menubar/widget items and users-list columns/row-actions/filter-tabs) that their key scope should deny, resulting in information disclosure.

## 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-p57v-xhv3-mf2w>
- <https://www.vulncheck.com/advisories/grav-api-plugin-before-missing-authorization>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-75835) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_