CVE-2026-73243Medium· 5.8▾ Sunlit

kkFileView is a universal file online preview project based on Spring Boot

▾ Sunlit zone — Low / medium · no exploitation signal

Depth score32/ 100 · Low

impact 31.9 · likelihood 0.1 · exploitation 0

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

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Published

Aug 11, 2026

Updated

Sep 9, 2026

CVSS

5.8

Vendor

—

Product

—

CWE

CWE-918

Depth score

32 · Low

EPSS

0.40% · p34

Platforms

—

Source

NVD

Vector

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

EPSS history

Exploit-prediction probability, daily snapshots since Sep 9.

0.3% → 0.4%▲ 0.08%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

4 events · 31 days

Aug 11, 2026Published
Disclosed via NVD
Sep 9, 2026Record revised
Last analysed / modified upstream
Sep 9, 2026EPSS first tracked
0.3%
Sep 11, 2026EPSS peak
0.3% → 0.4%

CWE-918 #nvd

Full technical detail▾

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.

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd

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