CVE-2026-16259Network attack vectorHinoki check available

Administrator account takeover via forged profile-update tokens

Published Aug 29, 2026 · Updated Aug 29, 2026

Authentication bypass in UIUX Lab Uix UserCenter 1.0.3 and earlier allows remote attackers to take over administrator accounts. The unauthenticated profile-update action accepts a token signed with a hardcoded key shared by every installation and does not verify that the target account belongs to the requester. A forged administrator token lets attackers replace that account's email address and password, granting control of the administrator account.

CVSS severity9.8
Critical
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
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Summary

What happened

Authentication bypass in UIUX Lab Uix UserCenter 1.0.3 and earlier allows remote attackers to take over administrator accounts. The unauthenticated profile-update action accepts a token signed with a hardcoded key shared by every installation and does not verify that the target account belongs to the requester. A forged administrator token lets attackers replace that account's email address and password, granting control of the administrator account.

The record

CVE
CVE-2026-16259
Published
Aug 29, 2026
Updated
Aug 29, 2026
Vendor
UIUX Lab
Product
Uix UserCenter
Classifications
CWE-269, T1098
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 29, 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 <=1.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

UIUX Lab · Uix UserCenterversion=0 <=1.0.3

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1098Account Manipulation

Public exploit references

No public exploit references are available in this record.

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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