CVE-2026-101138: CWE-284 Improper Access Control in CMP – Coming Soon & Maintenance
Description
The CMP – Coming Soon & Maintenance WordPress plugin before 4.1.21 does not correctly apply maintenance mode to pages added to its page whitelist by manually entered URL pattern, allowing unauthenticated visitors to view the content of those pages while maintenance mode is active.
CVSS v3.1
Score 5.3medium
Affected software
CMP – Coming Soon & Maintenance
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-101138 is an improper access control vulnerability (CWE-284) in the CMP – Coming Soon & Maintenance WordPress plugin before version 4.1.21. The plugin fails to correctly apply maintenance mode restrictions to pages that are manually whitelisted by URL pattern, resulting in unauthorized public access to those pages during maintenance mode. This issue affects versions 4.1.19 and 4.1.20.
Potential Impact
Unauthenticated users can view the content of pages that should be restricted during maintenance mode if those pages are added to the whitelist by manually entered URL patterns. This leads to unintended information disclosure but does not impact integrity or availability.
Mitigation Recommendations
Upgrade the CMP – Coming Soon & Maintenance plugin to version 4.1.21 or later, where this access control issue is fixed. No other mitigation is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-28T07:34:22.085Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad87ffc2cdf04f656d645f6
Added to database: 10/21/2026, 09:03:56 UTC
Last enriched: 10/21/2026, 09:19:09 UTC
Last updated: 10/21/2026, 13:40:20 UTC
Views: 6
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