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CVE-2023-2159

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

MEDIUM
5.3
CVSS Score
Published: June 9, 2023 at 05:33 AM UTC
Updated: June 17, 2026 at 05:51 AM UTC
2 products affected across 2 vendorsCmpCmp

Using CMP – Coming Soon & Maintenance Plugin by NiteoThemes by niteo?

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Cmp· Niteothemeswordpress-plugin
95%
v < 4.1.8
Affected range stops below 4.1.8, so it looks safe — our inference, not a vendor statement
Cmp· Niteowordpress-plugin
60%
v ≤ 4.1.7

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Exploit
Source: [email protected]
https://plugins.trac.wordpress.org/browser/cmp-coming-soon-maintenance/tags/4.1.6/niteo-cmp.php#L808
Patch
Source: [email protected]
https://plugins.trac.wordpress.org/changeset/2900571/cmp-coming-soon-maintenance/tags/4.1.8/cmp-advanced.php?old=2873620&old_path=cmp-coming-soon-maintenance%2Ftags%2F4.1.7%2Fcmp-advanced.php
Third Party Advisory
Source: [email protected]
https://www.wordfence.com/threat-intel/vulnerabilities/id/af955f69-b18c-446e-b05e-6a57a5f16dfa?source=cve

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMWordfence
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-284

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