CVE-2026-86272Public exploitNetwork attack vector

Unauthenticated executable file upload via missing validation

Published Sep 7, 2026 · Updated Sep 8, 2026

Unrestricted file upload in U+Smart Enjoyment WebSite 18.6001.1096.1000 allows remote attackers to store arbitrary files. The /Report/Upload/UploadFormImg.ashx handler accepts the File argument without adequate type, extension, or content validation before saving it. No authentication is required; uploaded ASHX scripts persist on the server and execute when requested, enabling server compromise.

CVSS severity7.3
High
EPSS probability0.38%
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 U+Smart Enjoyment WebSite 18.6001.1096.1000 allows remote attackers to store arbitrary files. The /Report/Upload/UploadFormImg.ashx handler accepts the File argument without adequate type, extension, or content validation before saving it. No authentication is required; uploaded ASHX scripts persist on the server and execute when requested, enabling server compromise.

The record

CVE
CVE-2026-86272
Published
Sep 7, 2026
Updated
Sep 8, 2026
Vendor
Beijing Meite Software Technology Co., Ltd.
Product
U+Smart Enjoyment WebSite
Classifications
CWE-434, CWE-284, T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=18.6001.1096.1000

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Beijing Meite Software Technology Co., Ltd. · U+Smart Enjoyment WebSiteversion=18.6001.1096.1000

Published CVSS scores

7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P
5.5VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
7.3VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CWE-284Improper Access Control
T1505.003Web Shell

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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