CVE-2023-2159

MEDIUM

CMP - Coming Soon & Maintenance Plugin by NiteoThemes <= 4.1.7 - Maintenance Mode Bypass via cmp_bypass Parameter

Title source: llm

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.

References (3)

Core 3

Core References

Exploit

https://plugins.trac.wordpress.org/browser/cmp-coming-soon-maintenance/tags/4.1.6/niteo-cmp.php#L808

Patch

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

https://www.wordfence.com/threat-intel/vulnerabilities/id/af955f69-b18c-446e-b05e-6a57a5f16dfa?source=cve

Scores

CVSS v3 5.3

EPSS 0.0077

EPSS Percentile 51.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-284

Status published

Products (2)

niteo/CMP – Coming Soon & Maintenance Plugin by NiteoThemes < 4.1.7

niteothemes/cmp < 4.1.8

Published Jun 09, 2023

Tracked Since Feb 18, 2026