CVE-2023-2159 json
CMP – Coming Soon & Maintenance <= 4.1.7 - Maintenance Mode Bypass
published 2023-06-09 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-33677
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- niteothemes cmp 4.1.8
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 22 mo ago
Exploit prediction
0.77% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/cmp-coming-soon-maintenance/tags/4.1.6/niteo-cmp.php#L808 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected products
- niteo CMP – Coming Soon & Maintenance Plugin by NiteoThemes
Classification
- Weakness
-
- CWE-284 Improper Access Control
- Technology feeds
References
-
plugins.trac.wordpress.org
/changeset/2900571/cmp-coming-soon-maintenance/tags/4.1.8/cmp-advanced.php?old=2873620&old_path=cmp-coming-soo
patch
-
plugins.trac.wordpress.org
/browser/cmp-coming-soon-maintenance/tags/4.1.6/niteo-cmp.php#L808
exploit
-
wordfence.com
/threat-intel/vulnerabilities/id/af955f69-b18c-446e-b05e-6a57a5f16dfa?source=cve
third-party-advisory
Sources
- CVE List CVE-2023-2159
- NVD CVE-2023-2159
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.