CVE-2026-73243

Software Component Vulnerability Advisory (CWE-Not-Specified)

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CyberVault Technical Summary

Analyst Synthesis

Security vulnerability CVE-2026-73243 affecting Generic/Unknown Software Component. Evaluated with CVSS Base Score of 5.8 (MEDIUM).

Original NVD Description

Source: NIST NVD

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 v3.1 Metric Breakdown

🎯 Affected Versions Matrix

Affected Product	Generic/Unknown / Software Component
Affected Versions	Unspecified
Weakness Enumeration	CWE-Not-Specified

🛡️ Remediation & Security Action

Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
Verification: Inspect installed binary packages and package manager versions for affected component releases.
Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.

⚠️ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

🔗 Verified Technical References

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Technical Analysis

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Risk Snapshot

5.8

MEDIUM SEVERITY

CVE ID CVE-2026-73243

Weakness CWE-Not-Specified

Vendor Generic/Unknown

Product Software Component

Published 2026-08-11

Vector N/A

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