CVE-2026-73243

medium

Description

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.

References

https://github.com/kekingcn/kkFileView/security/advisories/GHSA-gwwj-52hv-6g2m

https://github.com/kekingcn/kkFileView/releases/tag/v5.0.1

https://github.com/kekingcn/kkFileView/pull/767

https://github.com/kekingcn/kkFileView/issues/765

https://github.com/kekingcn/kkFileView/commit/32a887aa2cd70228998c617c4e7df6cfcf3fe709

Details

Source: Mitre, NVD

Published: 2026-08-11

Updated: 2026-08-11

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.8

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

Severity: Medium