CVE-2026-90976: CWE-284 Improper Access Control in Clean Login
The Clean Login WordPress plugin before 1.19 does not check whether user registration is enabled before creating an account in its registration handler, allowing unauthenticated users to create accounts even when the site has registration disabled.
AI Analysis
Technical Summary
The Clean Login WordPress plugin prior to version 1.19 does not properly enforce access control in its registration handler. Specifically, it does not check whether user registration is enabled before allowing account creation. This improper access control (CWE-284) enables unauthenticated attackers to create user accounts on sites that have disabled registration functionality.
Potential Impact
An attacker can create unauthorized user accounts on affected WordPress sites despite registration being disabled. This could lead to unauthorized access or privilege escalation depending on site configuration and user roles assigned to new accounts. The CVSS score of 5.3 reflects a medium severity with no confidentiality or availability impact but with integrity impact due to unauthorized account creation.
Mitigation Recommendations
A fix is available in Clean Login version 1.19 and later. Site administrators should update the plugin to version 1.19 or newer to ensure proper access control checks are enforced during user registration. Until updated, administrators should be aware that disabling registration in WordPress settings does not prevent account creation via this plugin.
CVE-2026-90976: CWE-284 Improper Access Control in Clean Login
Description
The Clean Login WordPress plugin before 1.19 does not check whether user registration is enabled before creating an account in its registration handler, allowing unauthenticated users to create accounts even when the site has registration disabled.
CVSS v3.1
Score 5.3medium
Affected software
Clean Login
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Clean Login WordPress plugin prior to version 1.19 does not properly enforce access control in its registration handler. Specifically, it does not check whether user registration is enabled before allowing account creation. This improper access control (CWE-284) enables unauthenticated attackers to create user accounts on sites that have disabled registration functionality.
Potential Impact
An attacker can create unauthorized user accounts on affected WordPress sites despite registration being disabled. This could lead to unauthorized access or privilege escalation depending on site configuration and user roles assigned to new accounts. The CVSS score of 5.3 reflects a medium severity with no confidentiality or availability impact but with integrity impact due to unauthorized account creation.
Mitigation Recommendations
A fix is available in Clean Login version 1.19 and later. Site administrators should update the plugin to version 1.19 or newer to ensure proper access control checks are enforced during user registration. Until updated, administrators should be aware that disabling registration in WordPress settings does not prevent account creation via this plugin.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-14T13:40:23.363Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aacde7455bf5e2cf5a03562
Added to database: 09/18/2026, 06:47:16 UTC
Last enriched: 09/18/2026, 07:01:33 UTC
Last updated: 09/19/2026, 01:28:43 UTC
Views: 12
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.