Improper Maintenance Mode Implementation in CMP Plugin for WordPress
CVE-2026-101138

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Cmp – Coming Soon & Maintenance
Vendor
CVE Published:
21 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-101138?

The CMP – Coming Soon & Maintenance plugin for WordPress fails to correctly enforce maintenance mode for pages that have been added to a whitelist via manually entered URL patterns. This flaw allows unauthenticated users to access and view content on these pages even when maintenance mode is activated, potentially exposing sensitive information while maintenance operations are ongoing.

Affected Version(s)

CMP – Coming Soon & Maintenance 4.1.19 < 4.1.21

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-101138 - Proof of Concept

References

https://wpscan.com/vulnerability/ae9f4fa9-e17d-4c52-86c8-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Sanjeev Kumar
WPScan
.