CVE-2026-73243
Medium · CVSS 5.8Published 2026-08-11
CVSS
5.8
Medium
EPSS
—
exploit probability
Active Exploit
No
not yet listed
What is CVE-2026-73243?
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 Score Explained
CVSS 5.8 is Medium severity. Exploitation usually requires some specific conditions (local access, user interaction, or a particular config). Still worth patching in your next maintenance window.
EPSS Exploitation Probability
No EPSS score yet — model needs more data on this CVE.
References & Patches
- ›https://github.com/kekingcn/kkFileView/commit/32a887aa2cd70228998c617c4e7df6cfcf3fe709
- ›https://github.com/kekingcn/kkFileView/issues/765
- ›https://github.com/kekingcn/kkFileView/pull/767
- PATCHhttps://github.com/kekingcn/kkFileView/releases/tag/v5.0.1
- ›https://github.com/kekingcn/kkFileView/security/advisories/GHSA-gwwj-52hv-6g2m
- ›https://github.com/kekingcn/kkFileView/security/advisories/GHSA-gwwj-52hv-6g2m
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