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WordPress plugin

CMP – Coming Soon & Maintenance <= 4.1.7 — Maintenance Mode Bypass

CVE-2023-2159Published · Updated

Action summary

Affected: ≤4.1.7Update to 4.1.8 or newer

All remediation steps
Watch plugin
Severity
Medium5.3
CVSS
5.3
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:L Confidentiality
Low
I:N Integrity
None
A:N Availability
None
Weakness
CWE-284 Improper Access Control
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

CMP – Coming Soon & Maintenance Plugin by NiteoThemes cmp-coming-soon-maintenance

  1. Affected≤ 4.1.7
  2. Patched in4.1.8

Update to 4.1.8 or newer.

You are affected if you run ≤ 4.1.7. Version 4.1.8 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under CMP – Coming Soon & Maintenance Plugin by NiteoThemes.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 4.1.8, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch CMP – Coming Soon & Maintenance Plugin by NiteoThemes to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Marco Wotschka.

The CMP – Coming Soon & Maintenance plugin for WordPress is vulnerable to Maintenance Mode Bypass in versions up to, and including, 4.1.7. A correct cmp_bypass GET parameter in the URL (equal to the md5-hashed home_url in the default setting) allows users to visit a site placed in maintenance mode thus bypassing the plugin's provided feature.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in CMP – Coming Soon & Maintenance Plugin by NiteoThemes

All 13
More vulnerabilities in CMP – Coming Soon & Maintenance Plugin by NiteoThemes
SeverityVulnerabilityCVEPublished
Medium5.34.1.20 - Missing Authorization to Unauthenticated Maintenance Mode Bypass
4.1.19 – 4.1.20Update to 4.1.21
CVE-2026-101138
Medium5.3Coming Soon & Maintenance <= 4.1.19 - Unauthenticated Maintenance Mode Bypass
≤4.1.19Update to 4.1.20
CVE-2026-13413
High7.2Authenticated (Editor+) Privilege Escalation via Arbitrary Option Update to cmp_ajax_import_settings AJAX Action
≤4.1.17Update to 4.1.18
CVE-2026-12470
Medium4.7Authenticated (Editor+) Privilege Escalation
<4.1.18Update to 4.1.18
CVE-2026-13415
Medium5.3Missing Authorization to Unauthenticated Settings Change
<4.1.18Update to 4.1.18
CVE-2026-13414

Timeline

  1. CVE published

    Severity medium, CVSS 5.3

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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