---
cve: "CVE-2026-73243"
severity: "MEDIUM"
cvss: 5.8
epss: "32%"
vendor: "kekingcn"
kev: false
exploited: false
published: "2026-08-11 20:18:49"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-16T14:09:00+02:00"
---

# CVE-2026-73243

> 5.8 MEDIUM · 🧪 PoC

## Beschreibung

kkFileView is a universal file online preview project based on Spring Boot. Prior to 5.0.1, the unauthenticated GET /addTask endpoint in kkFileView is omitted from TrustHostFilter and TrustDirFilter in server/src/main/java/cn/keking/config/WebConfig.java, allowing FileConvertQueueTask to fetch an attacker-selected URL after FileHandlerService#getFileAttribute uses the fullfilename parameter to force an OFFICE, COMPRESS, or CAD type. This issue is fixed in version 5.0.1.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 32a887aa2cd70228998c617c4e7df6cfcf3fe709 (Commit)
- e134689df3d9c6ae48749d42cc282d9920dd0813 (Commit)

## Referenzen

- <https://github.com/kekingcn/kkFileView/security/advisories/GHSA-gwwj-52hv-6g2m>
- <https://github.com/kekingcn/kkFileView/issues/765>
- <https://github.com/kekingcn/kkFileView/pull/767>
- <https://github.com/kekingcn/kkFileView/commit/32a887aa2cd70228998c617c4e7df6cfcf3fe709>
- <https://github.com/kekingcn/kkFileView/releases/tag/v5.0.1>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-73243) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_