Vulnerabilities CVE-2026-73243

CVE-2026-73243

Medium

Open

TLP:CLEAR

kkFileView: Unauthenticated SSRF via /addTask with fullfilename type-confusion bypass

NVD CVE.org

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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.

Details

CVSS Score: 5.8
EPSS Score ⓘ: 0.32%

24.2th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Confidence: 90%
Published: Aug 11, 2026
Last Modified: Aug 11, 2026

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