---
cve: "CVE-2026-64850"
severity: "HIGH"
cvss: 8.7
epss: "34%"
vendor: "getgrav"
kev: false
exploited: false
published: "2026-08-19 15:58:02"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T22:38:09+02:00"
---

# CVE-2026-64850

> 8.7 HIGH · 🧪 PoC

## Beschreibung

Grav is a file-based Web platform. Prior to 2.0.7, Grav Blueprint::dynamicData() in system/src/Grav/Common/Data/Blueprint.php sends an editor-controlled Class::method provider and arguments to call_user_func_array() without rejecting dangerous callback parameters. An account with admin.pages or api.pages.write can use Grav\Common\Utils::arrayFilterRecursive() as a trampoline with system as the callback, place a command in page frontmatter, and execute that command as the web server user when the page is viewed. This issue is fixed in version 2.0.7.

## CVSS-Vektor

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

## Patch verfügbar (OSV)

- acffa34cbb0787fee87c609e0d6289e904fee33c (Commit)
- 6568f2d27ce9e1e578c4d0a690bd3e8e0a0689b2 (Commit)

## Referenzen

- <https://github.com/getgrav/grav/security/advisories/GHSA-fj2p-qj2f-74v5>
- <https://github.com/getgrav/grav/commit/acffa34cbb0787fee87c609e0d6289e904fee33c>
- <https://github.com/getgrav/grav/releases/tag/2.0.7>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-64850) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_