CVE-2026-73243CWE-918ssrf

CVE-2026-73243

Medium · published August 12, 2026

CVSS v3.1
5.8
EPSS
0%
Percentile
36.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00432 · 36.5th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-08-12T00:18Z
References (6)
https://github.com/kekingcn/kkFileView/commit/32a887aa2cd70228998c617c4e7df6cfcf3fe709 · [email protected]https://github.com/kekingcn/kkFileView/issues/765 · [email protected]https://github.com/kekingcn/kkFileView/pull/767 · [email protected]https://github.com/kekingcn/kkFileView/releases/tag/v5.0.1 · [email protected]https://github.com/kekingcn/kkFileView/security/advisories/GHSA-gwwj-52hv-6g2m · [email protected]https://github.com/kekingcn/kkFileView/security/advisories/GHSA-gwwj-52hv-6g2m · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 11 AUG 20:04Z
    kkFileView: Unauthenticated SSRF via /addTask with fullfilename type-confusion bypass
    cvelistv5