CVE-2026-54184Network attack vector

Administrator lockout via static activation nonce

Published Jun 17, 2026 · Updated Jun 17, 2026

Authorization bypass in Alberto Hornero Clean Login 1.15 and earlier allows remote attackers to demote arbitrary WordPress users. The email-activation flow accepts a static nonce that is not coupled to a user and applies a user-controlled account key without verifying authorization. No authentication is required, and demoting an Administrator to the default role removes dashboard access and interrupts site administration.

CVSS severity8.2
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

Authorization bypass in Alberto Hornero Clean Login 1.15 and earlier allows remote attackers to demote arbitrary WordPress users. The email-activation flow accepts a static nonce that is not coupled to a user and applies a user-controlled account key without verifying authorization. No authentication is required, and demoting an Administrator to the default role removes dashboard access and interrupts site administration.

The record

CVE
CVE-2026-54184
Published
Jun 17, 2026
Updated
Jun 17, 2026
Vendor
Alberto Hornero
Product
Clean Login
Classifications
CWE-639, CAPEC-180, T1531
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 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=n/a <=1.15 changes=[{"at":"1.16","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Alberto Hornero · Clean Loginversion=n/a <=1.15 changes=[{"at":"1.16","status":"unaffected"}]

Published CVSS scores

8.2Patchstack CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
CAPEC-180Exploiting Incorrectly Configured Access Control Security Levels
T1531Account Access Removal

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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