---
id: CVE-2026-73243
title: kkFileView is a universal file online preview project based on Spring Boot
summary: >-
  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/conf…
severity: medium
cvss: 5.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N'
cwe:
  - CWE-918
published: '2026-08-11'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T20:46:28.353'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73243'
references:
  - url: >-
      https://github.com/kekingcn/kkFileView/commit/32a887aa2cd70228998c617c4e7df6cfcf3fe709
    label: security-advisories@github.com
  - url: 'https://github.com/kekingcn/kkFileView/issues/765'
    label: security-advisories@github.com
  - url: 'https://github.com/kekingcn/kkFileView/pull/767'
    label: security-advisories@github.com
  - url: 'https://github.com/kekingcn/kkFileView/releases/tag/v5.0.1'
    label: security-advisories@github.com
  - url: >-
      https://github.com/kekingcn/kkFileView/security/advisories/GHSA-gwwj-52hv-6g2m
    label: security-advisories@github.com
  - url: >-
      https://github.com/kekingcn/kkFileView/security/advisories/GHSA-gwwj-52hv-6g2m
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00398
epssPercentile: 0.33834
ingestedAt: '2026-09-09T21:22:45.529Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.