---
cve: "CVE-2026-33237"
severity: "MEDIUM"
cvss: 5.5
epss: "34%"
vendor: "WWBN"
kev: false
exploited: false
published: "2026-03-21 00:16:26"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T04:56:31+02:00"
---

# CVE-2026-33237

> 5.5 MEDIUM · 🧪 PoC

## Beschreibung

WWBN AVideo is an open source video platform. Prior to version 26.0, the Scheduler plugin's `run()` function in `plugin/Scheduler/Scheduler.php` calls `url_get_contents()` with an admin-configurable `callbackURL` that is validated only by `isValidURL()` (URL format check). Unlike other AVideo endpoints that were recently patched for SSRF (GHSA-9x67-f2v7-63rw, GHSA-h39h-7cvg-q7j6), the Scheduler's callback URL is never passed through `isSSRFSafeURL()`, which blocks requests to RFC-1918 private addresses, loopback, and cloud metadata endpoints. An admin can configure a scheduled task with an internal network `callbackURL` to perform SSRF against cloud infrastructure metadata services or internal APIs not otherwise reachable from the internet. Version 26.0 contains a patch for the issue.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- aee1e11ee8d9343f87b7643e49cc32924b07979b (Commit)
- df926e500580c2a1e3c70351f0c30f4e15c0fd83 (Commit)

## Referenzen

- <https://github.com/WWBN/AVideo/security/advisories/GHSA-v467-g7g7-hhfh>
- <https://github.com/WWBN/AVideo/issues/10403>
- <https://github.com/WWBN/AVideo/commit/df926e500580c2a1e3c70351f0c30f4e15c0fd83>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-33237) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_