CVE-2026-80050Public exploitNetwork attack vector

Arbitrary file upload via unchecked multipart endpoints

Published Aug 25, 2026 · Updated Aug 26, 2026

Unrestricted file upload in ContiNew Admin 4.1.0 and earlier allows remote authenticated users to store arbitrary file types. MultipartUploadController exposes init, part, complete, and cancel without file-upload permission checks, while MultipartUploadServiceImpl records supplied extensions without applying the normal allowlist. Any logged-in user can persist attacker-controlled files; stored XSS or server-side execution requires a storage URL served by a compatible web handler.

CVSS severity7.1
High
EPSS probability0.25%
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 ContiNew Admin 4.1.0 and earlier allows remote authenticated users to store arbitrary file types. MultipartUploadController exposes init, part, complete, and cancel without file-upload permission checks, while MultipartUploadServiceImpl records supplied extensions without applying the normal allowlist. Any logged-in user can persist attacker-controlled files; stored XSS or server-side execution requires a storage URL served by a compatible web handler.

The record

CVE
CVE-2026-80050
Published
Aug 25, 2026
Updated
Aug 26, 2026
Vendor
OpenContiNew
Product
ContiNew Admin
Classifications
CWE-434, CAPEC-1, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 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=0 <=4.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenContiNew · ContiNew Adminversion=0 <=4.1.0

Published CVSS scores

7.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
6.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A: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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CAPEC-1Accessing Functionality Not Properly Constrained by ACLs
T1190Exploit Public-Facing Application

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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