CVE-2023-1684Public exploitNetwork attack vector

Authenticated arbitrary file upload via superadmin route

Published Mar 29, 2023 · Updated Aug 2, 2024

Unrestricted file upload in PuYueTian HadSky 7.7.16 allows remote authenticated users to place arbitrary files through a superadmin route. The route's upload handling accepts a crafted file without enforcing a dangerous-file restriction; the responsible function is not publicly identified. High-privilege access is required, and the CNA records limited data exposure, modification, and service disruption without demonstrating code execution.

CVSS severity4.7
Medium
EPSS probability0.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in PuYueTian HadSky 7.7.16 allows remote authenticated users to place arbitrary files through a superadmin route. The route's upload handling accepts a crafted file without enforcing a dangerous-file restriction; the responsible function is not publicly identified. High-privilege access is required, and the CNA records limited data exposure, modification, and service disruption without demonstrating code execution.

The record

CVE
CVE-2023-1684
Published
Mar 29, 2023
Updated
Aug 2, 2024
Vendor
PuYueTian
Product
HadSky
Classifications
CWE-434, T1105
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.7.16

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

PuYueTian · HadSkyversion=7.7.16

Published CVSS scores

4.7VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
5.8VulDBAV:N/AC:L/Au:M/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.7VulDBCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1105Ingress Tool Transfer

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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